Oregon Trail
The Oregon Trail was a historic route that pioneers traveled in the 18...
Oreide
Oreide refers to a type of mineral ore with a metallic appearance....
Orekhovo-Zuyevo
Orekhovo-Zuyevo is a city in Russia known for its historical significa...
Orel
Orel is a city in Russia known for its industrial significance....
Orem
Orem is a city located in Utah County, Utah....
Orenburg
Orenburg is a city in Russia known for its rich history and cultural s...
Orenda
Orenda is a native American belief in a spiritual force present in all...
Orense
Orense is a province in the region of Galicia in northwest Spain....
Oreo
Oreo is a sandwich cookie consisting of two chocolate wafers with a sw...
Oreodont
Oreodont was a prehistoric mammal resembling a small sheep that lived ...
Oreopithecus
Oreopithecus is an extinct genus of primates that existed during the M...
Oreshoot
Oreshoot is a geological term referring to a secondary deposit of ore ...
Oresme
The Oresme was a medieval philosopher, mathematician, and economist kn...
Oresteia
The Oresteia is a trilogy of Greek tragedies that explores the themes ...
Orestes
Orestes tells the story of a man's vengeance on his mother for murderi...
Orestes complex
The Orestes complex refers to a psychological phenomenon where an indi...
Øresund
Øresund is a strait connecting the Baltic Sea with the North Sea, sepa...
Orexis
Orexis can be defined as a strong desire or appetite....
Orf
Orf is a contagious skin disease affecting sheep and goats caused by a...
Orfe
Orfe is a type of freshwater fish that is known for its elegant appear...
Orfeo ed Euridice
Orfeo ed Euridice is an opera by Christoph Willibald Gluck that tells ...
Orff
Orff is a music teaching method that emphasizes creativity and explora...
Orfray
The term orfray refers to a type of decorative trim often used on clot...
Org
The meaning of org is organization....
Organ
An organ is a group of tissues that work together to perform a specifi...
Organ grinder
An organ grinder is a street performer who plays music on a hand-crank...
Organ meat
Organ meat refers to the internal organs of animals, such as the liver...
Organ of Corti
The organ of Corti is a structure in the inner ear responsible for con...
Organ pipe
An organ pipe is a musical instrument that produces sound by vibrating...
Organ point
An organ point is a sustained single pitch in the bass while other voi...
Organ screen
Organ screen refers to a decorative partition in a church or cathedral...
Organ whistle
An organ whistle is used to imitate the sound of a whistle using an or...
Organ-pipe cactus
The organ-pipe cactus is a tall, columnar cactus native to Mexico and ...
Organ-pipe coral
The organ-pipe coral is a type of coral that has long, tubular struc...
Organa
Organa refers to musical instruments used in the practice of organum, ...
Organdie
Organdie is a thin, plain-woven cotton fabric that is often used for m...
Organdy
Organdy is a sheer, lightweight cotton fabric with a stiff, crisp text...
Organelle
An organelle is a specialized subunit within a cell that has a specifi...
Organelles
Organelles are specialized structures within a cell that perform speci...
Organic
Organic refers to products that are naturally grown and produced witho...
Organic acid
Organic acids are acids that are naturally occurring in living organis...
Organic chemistry
Organic chemistry is the study of carbon-based compounds and their pro...
Organic compounds
Organic compounds are carbon-based substances that are essential for l...
Organic disease
Organic disease refers to a physical condition affecting the body's or...
Organic light-emitting diode
An organic light-emitting diode is a technology that uses organic comp...
Organic molecule
An organic molecule is a molecule that contains carbon atoms bonded to...
Organic molecules
Organic molecules are compounds containing carbon atoms bonded to othe...
Organic psychosis
Organic psychosis refers to a mental disorder characterized by physica...
Organic solidarity
Organic solidarity is a social cohesion based on interdependence among...
Organically
Organically means grown or produced naturally without the use of synth...
Organicism
Organicism is the theory that organisms are complex systems that funct...
Organism
An organism is a living thing that can function independently....
Organist
An organist is a musician who plays the organ, an instrument that prod...
Organization
Organization is the coordination of activities and resources to achiev...
Organization chart
An organization chart is a visual representation of a company's struct...
Organization for Economic Cooperation and Development
The Organization for Economic Cooperation and Development promotes pol...
Organization for European Economic Cooperation
The Organization for European Economic Cooperation was established to ...
Organization man
The term organization man refers to an individual who prioritizes conf...
Organization of African Unity
The Organization of African Unity was a continental organization that ...
Organization of American States
The Organization of American States is a regional organization compose...
Organization of Petroleum Exporting Countries
The Organization of Petroleum Exporting Countries is a coalition of oi...
Organizational culture
Organizational culture is the values, beliefs, and behaviors that guid...
Organizational psychology
Organizational psychology is the study of how individuals behave withi...
Organize
The meaning of organize is to arrange or categorize items in a systema...
Organized
The meaning of organized is having a system in place to arrange and ma...
Organized labor
Organized labor is a collective union of workers advocating for better...
Organized militia
An organized militia refers to a group of civilians trained and equipp...
Organizer
An organizer is someone who arranges and plans events efficiently and ...
Organo-
Organo- refers to organic or pertaining to an organization or structur...
Organogenesis
Organogenesis is the process of organ development from specific cell p...
Organogram
An organogram is a diagram illustrating the structure of an organizati...
Organography
Organography is the study of structures and arrangement of the vario...
Organoleptic
Organoleptic refers to the sensory properties of a substance that can ...
Organology
Organology is the study of musical instruments and their classificatio...
Organomagnesium
Organomagnesium compounds are organic compounds that contain a carbon-...
Organometallic
Organometallic refers to compounds containing at least one metal-carbo...
Organon
The term organon refers to a tool or instrument used for a specific pu...
Organophosphate
Organophosphates are a class of pesticides that are commonly used in a...
Organosilicon
Organosilicon refers to compounds containing silicon atoms bonded to o...
Organosiloxane
Organosiloxane is a compound composed of organic groups attached to si...
Organotherapy
Organotherapy is a medical treatment that involves using organ extract...
Organotin
Organotin refers to a class of chemical compounds containing at least ...
Organotropism
Organotropism refers to the tendency of certain pathogens or chemicals...
Organum
Organum is a musical composition characterized by the use of parallel ...
Organza
Organza is a sheer, lightweight fabric often used in formal attire and...
Organzine
Organzine is a type of silk fabric made with a twisted yarn that has a...
Orgasm
Orgasm is a physical and emotional climax experienced during sexual ac...
Orgasmic
Orgasmic means experiencing intense pleasure during sexual activity....
Orgeat
Orgeat is a sweet syrup made from almonds, sugar, and rose water, trad...
Orgetorix
Orgetorix was a leader who attempted to seize power in ancient Gaul....
Orgiastic
The word "orgiastic" describes an experience characterized by intense ...
Orgone
Orgone is a concept that refers to a universal life force energy belie...
Orgone box
An orgone box is a device designed to accumulate and concentrate orgon...
Orgone energy
Orgone energy is believed to be a type of life-force energy that exist...
Orgulous
The meaning of orgulous can be described as excessively proud or haugh...
Orgy
An orgy is a gathering where participants engage in unrestrained and o...
Oribi
Oribi is a type of antelope found mainly in Eastern Africa....
Orichalcum
Orichalcum is a legendary metal mentioned in ancient texts that was be...
Oriel
An oriel is a projecting window structure often found in Gothic archit...
Oriel window
An oriel window is a projecting bay window that is supported by bracke...
Orient
The term orient means to determine one's position or direction relativ...
Orient Express
The meaning of Orient Express can be captured by the exotic journey ta...
Oriental
The term "oriental" refers to things relating to the East, particularl...
Oriental alabaster
Oriental alabaster refers to a type of mineral or stone commonly used ...
Oriental almandine
The meaning of Oriental almandine can be described as a type of garnet...
Oriental beetle
The oriental beetle is a type of insect native to Asia known for causi...
Oriental carpet
An Oriental carpet is a type of rug originating from countries in Asia...
Oriental cat's eye
The Oriental cat's eye refers to a unique and elongated shape of the e...
Oriental cockroach
The oriental cockroach is a type of roach commonly found in humid envi...
Oriental emerald
The Oriental emerald refers to a specific type of emerald originating ...
Oriental fruit moth
The Oriental fruit moth is a pest that damages a variety of fruits by ...
Oriental poppy
The Oriental poppy is a flowering plant known for its vibrant colors a...
Oriental rug
An Oriental rug is a handcrafted traditional textile that is intricate...
Oriental topaz
Oriental topaz is a rare and valuable gemstone that radiates a warm an...
Orientalia
Orientalia explores cultural artifacts and practices from the Orient, ...
Orientalism
Orientalism is a term that refers to the representation of Eastern cul...
Orientalize
The term Orientalize refers to the process of exoticizing or stereotyp...
Orientate
To orientate means to determine one's location or position in relation...
Orientation
Orientation is a process of familiarizing oneself with a new environme...
Oriente
Oriente means East in Spanish....
Orienteer
Orienteer means to navigate through unfamiliar terrain using a map and...
Orienteering
Orienteering is a navigation sport where participants use a map and co...
Orifice
An orifice refers to an opening or hole, especially in a body or organ...
Orifice meter
An orifice meter is a device used to measure the rate of fluid flow th...
Oriflamme
Oriflamme is a symbolic banner or emblem carried at the front of a pro...
Orig.
The meaning of orig is the original or earliest form of something....
Origami
Origami is the art of folding paper to create intricate designs and fi...
Origan
Origan is a type of herb commonly used in Mediterranean cuisine to add...
Origanum
Origanum is a genus of aromatic flowering plants that are commonly u...
Origen
Origen was an early Christian theologian known for his exegesis of scr...
Origin
The origin refers to the starting point or source of something....
Origin of Species, The
The Origin of Species discusses Charles Darwin's theory of evolution t...
Origin story
An origin story is a narrative that explains the beginning of a charac...
Original
Original means the first or earliest version of something that is not ...
Original equipment manufacturer
Original Equipment Manufacturer refers to a company manufacturing prod...
Original sin
Original sin is the inherited sinful nature present in all humans as a...
Originalism
Originalism is a judicial philosophy that interprets the Constitution ...
Originality
Originality is the unique expression of ideas or concepts that sets th...
Originally
The word "originally" signifies the beginning or starting point of som...
Originate
The word originate means to begin or come into existence....
Origination fee
An origination fee is a fee charged by a lender for processing a new l...
Originative
Originative means having the ability to create original and innovative...
Orihon
Orihon is a Japanese traditional bookbinding technique that allows for...
Orihou
Orihou is a Japanese term meaning "breaking the law" or disobedience....
Orillia
Orillia is a city in Canada known for its scenic landscapes and vibran...
Orinasal
Orinasal refers to sounds produced through both the nose and the mouth...
Orinda
Orinda is a poetic exploration of the beauty found in California's nat...
Orinoco
Orinoco is a river in South America that flows through Venezuela and C...
Oriole
An oriole is a type of bird known for its vibrant colors and melodious...
Orion
Orion is a famous constellation in the night sky, known for its distin...
Orion Nebula
The Orion Nebula is a stellar nursery where new stars are born and is ...
Orionids
The Orionids are a meteor shower associated with Halley's Comet, which...
Orisha
Orisha refers to a spirit or deity in the Yoruba religion, often embod...
Oriskany
Oriskany is a battle that took place during the American Revolutionary...
Orismology
Orismology is the study of words and their origins in a language....
Orison
An orison is a prayer or plea to a higher power for guidance or assist...
Orissa
Orissa, now known as Odisha, is a state in eastern India with a rich c...
Orixa
Orixa is a term used in the religion of Candomblé to refer to a deity ...
Oriya
Oriya is a language primarily spoken in the Indian state of Odisha, kn...
Orizaba
Orizaba is a volcano located in Mexico, known for its impressive heigh...
Orjonikidze
Orjonikidze was a prominent Bolshevik revolutionary and Soviet politic...
Orkhon
Orkhon is a river in Mongolia known for its historical significance an...
Orkney
Orkney is an archipelago located off the northern coast of Scotland....
Orkney Islands
Orkney Islands are a group of islands off the northeastern coast of Sc...
Orkneyman
Orkneyman is a term used to refer to a person from the Orkney islands ...
Orland Park
Orland Park is a suburb outside of Chicago....
Orlando
Orlando is a novel that explores the theme of identity and self-discov...
Orle
An orle is a heraldic charge consisting of a narrow band around the ed...
Orléanais
Orléanais region in France known for its rich historical significance ...
Orleanist
Orleanist refers to a follower of the Orleans branch of the Bourbon dy...
Orléans
Orléans is a city in north-central France, known for its historical si...
Orléans, d'
Orléans, d' explores the intersection of culture, history, and identit...
Orlfly
Olfly is an innovative insect repellent that uses natural oils to keep...
Orlich
Orlich is a term that means "blessed" with a special significance in L...
Orlo
The word orlo means "hem" in Italian....
Orlon
Orlon is a synthetic fiber known for its durability and warmth....
Orlop
The term orlop refers to the lowest deck on a ship where stowage of ca...
Orlov
The meaning of Orlov can be summarized as a symbol of power and elegan...
Orly
Orly is a phrase that signifies an understanding and acknowledgment of...
Ormandy
Ormandy is a conductor who greatly influenced the classical music worl...
Ormazd
Ormazd is a supreme deity in Zoroastrianism associated with goodness, ...
Ormer
An ormer is a type of marine snail commonly found along the coasts of ...
Ormolu
Ormolu is a technique for applying finely ground, high-carat gold to b...
Ormond Beach
Ormond Beach is a charming coastal city in Florida known for its beaut...
Ormonde
The meaning of Ormonde is a sense of regality and sophistication....
Ormuz
The meaning of Ormuz is symbolic of the ultimate quest for power and c...
Ornament
An ornament is a decorative element that enhances the beauty or elegan...
Ornamental
Ornamental means decorative or embellished with ornate details....
Ornamentalism
Ornamentalism refers to the decoration or embellishment of objects or ...
Ornamentation
Ornamentation is the embellishment or decoration added to something ...
Ornamented
The meaning of ornamented is to decorate or embellish with elaborate d...
Ornate
Ornate means extravagantly decorated or adorned with intricate details...
Orne
Orne is a department in northwestern France renowned for its countrysi...
Ornery
The meaning of ornery can be described as difficult, grumpy, or stubbo...
Ornis
Ornis means "bird" in Greek, with bird being the highlighted word....
Ornith-
The term ornith- refers to a prefix related to birds....
Ornithic
Ornithic means relating to birds....
Ornithine
Ornithine is an amino acid important in the urea cycle for detoxifying...
Ornithischian
Ornithischian refers to a group of herbivorous dinosaur species that p...
Ornitho-
The term ornitho- refers to anything related to birds....
Ornithoid
Ornithoid means resembling or characteristic of birds....
Ornithol.
The meaning of ornithol is the study of birds....
Ornithology
The study of birds and their behavior, ecology, physiology, and classi...
Ornithomancy
Ornithomancy is the practice of divination by interpreting the behavio...
Ornithophilous
Ornithophilous means bird-loving or adapted for pollination by birds....
Ornithophily
Ornithophily is a form of pollination where birds play a crucial role ...
Ornithopod
Ornithopod refers to a group of herbivorous dinosaur characterized by ...
Ornithopter
An ornithopter is an aircraft that flies by flapping its wings like a ...
Ornithorhynchus
The meaning of ornithorhynchus is a small, egg-laying mammal native to...
Ornithoscopy
The meaning of ornithoscopy is the interpretation of the behavior and ...
Ornithosis
Ornithosis is a respiratory disease caused by the bacterium Chlamydoph...
Oro
The word oro, highlighted by , means gold in Spanish....
Oro y plata
Oro y plata means gold and silver in Spanish....
Orobanchaceous
Orobanchaceous refers to a parasitic plant family known for lacking ...
Orogen
An orogen is a mountain-building process resulting from the collision ...
Orogeny
Orogeny is the process of mountain building through tectonic plate mov...
Orographic cloud
An orographic cloud is formed when moist air is forced upwards over a ...
Orographic precipitation
Orographic precipitation occurs when moisture-laden air is forced upwa...
Orography
Orography is the study of the physical geography and features of mount...
Oroide
Oroide refers to a mineral resembling gold, often used in imitation of...
Orometer
An orometer is a device used to measure atmospheric pressure....
Oromo
The word Oromo refers to a Cushitic ethnic group in Ethiopia and parts...
Oronasal
Oronasal refers to the communication between the nose and the mouth....
Orono
Orono is a place of lush forests and serene lakes in Maine....
Orontes
The Orontes River is a significant waterway in the Middle East that fl...
Oropendola
Oropendola is a type of bird known for its distinctive long hanging ne...
Oropharynx
The oropharynx is the middle section of the pharynx located behind the...
Orosius
Orosius is a medieval historian who emphasized the importance of Chris...
Orotund
Orotund refers to a style of speaking that is loud and imposing....
Orozco
Orozco's meaningful works of art capture the struggles and resilience ...
Orpen
Orpen is a South African artist known for his vivid and expressive pai...
Orphan
An orphan is a child who has lost both parents....
Orphan drug
An orphan drug is a pharmaceutical designated to treat a rare medical ...
Orphanage
An orphanage is a residential institution dedicated to the care and up...
Orphans' court
Orphans' court is a court that deals with the affairs of minors and in...
Orpharion
An orpharion is a type of Renaissance-era lute with a pear-shaped body...
Orphean
Orphean means relating to Orpheus, the legendary musician and poet in ...
Orpheus
The story of Orpheus explores the power of music and love to transcend...
Orpheus and Eurydice
The myth of Orpheus and Eurydice exemplifies the power of love and the...
Orphic
Orphic relates to mystical or religious beliefs and practices....
Orphism
Orphism is a spiritual movement in ancient Greece that emphasized the ...
Orphrey
Orphrey refers to a decorative band or strip of fabric typically embro...
Orpiment
Orpiment is a mineral characterized by its yellow color and toxic prop...
Orpine
Orpine, also known as live-for-ever, is a succulent plant with fleshy ...
Orpington
Orpington is a breed of domestic chicken that is known for its large s...
Orr
Orr symbolizes the power of imagination to shape reality....
Orra
Orra means "luck" in Scottish Gaelic....
Orrery
An orrery is a mechanical model of the solar system, used to demonstra...
Orrin
Orrin means light, symbolizing illumination and clarity....
Orris
Orris is a dried rhizome of the iris plant used in perfumery for its v...
Orrisroot
Orrisroot is a dried rhizome of the iris flower used in perfumery for ...
Orsha
Orsha is a city in Belarus with a rich history dating back to the 11th...
Orsini
Orsini represents a prominent Italian noble family with a rich history...
Orsk
Orsk is a horror novel about a haunted furniture store....
Orson
The meaning of Orson can be understood as powerful or authoritative....
Ort
An ort is a small scrap or leftover food, typically uneaten or discard...
Ortanique
The meaning of ortanique is a hybrid citrus fruit that is a cross betw...
Ortega
Ortega is a philosopher of action who emphasizes authenticity in indiv...
Ortega Saavedra
Ortega Saavedra is a Nicaraguan politician known for his controversial...
Ortega y Gasset
Ortega y Gasset emphasized the importance of perspective in understand...
Ortegal
Ortegal is a cape located in the northwestern coast of Spain....
Orth-
The prefix orth- means correct or right in terms of order, structure, ...
Orthicon
The orthicon was a type of television camera tube used in early televi...
Ortho
Ortho refers to a position that is straight or upright....
Ortho-cousin
An ortho-cousin refers to a relative that is not directly related but ...
Ortho-dichlorobenzene
Ortho-dichlorobenzene is a chemical compound consisting of a benzene r...
Ortho-Novum
Ortho-Novum is a contraceptive medication used to prevent pregnancy by...
Ortho-toluidine
Ortho-toluidine is a chemical compound that is primarily used as a dye...
Ortho-xylene
Ortho-xylene is a type of xylenes, which are a group of isomeric hydro...
Orthoboric acid
Orthoboric acid is a compound commonly used in household products and ...
Orthocenter
The orthocenter of a triangle is the point where the three altitudes i...
Orthocentre
The orthocentre of a triangle is the point where the three altitudes i...
Orthocephalic
Orthocephalic means having a proportional or balanced head shape....
Orthochromatic
Orthochromatic refers to a type of film or photography that is sensiti...
Orthoclase
Orthoclase is a type of feldspar mineral commonly found in granite....
Orthoclastic
Orthoclastic means breaking or fracturing along straight lines....
Orthodontia
Orthodontia is a branch of dentistry that focuses on aligning and stra...
Orthodontics
Orthodontics is a dental specialty that focuses on straightening and a...
Orthodonture
Orthodonture is the branch of dentistry focused on correcting misalign...
Orthodox
The term orthodox refers to beliefs or practices that are traditional ...
Orthodox Christianity
Orthodox Christianity is a branch of Christianity that emphasizes trad...
Orthodox Church
The Orthodox Church is a Christian denomination that follows tradition...
Orthodox Jew
An Orthodox Jew is someone who adheres strictly to traditional Jewish ...
Orthodox Judaism
Orthodox Judaism emphasizes tradition and strict adherence to Jewish l...
Orthodox sleep
Orthodox sleep refers to traditional or conventional patterns of sleep...
Orthodoxy
Orthodoxy is traditional adherence to established beliefs and practice...
Orthoepy
Orthoepy is the study of pronunciation as it relates to spoken languag...
Orthoformate
Orthoformate is a chemical compound formed by the reaction of an alcoh...
Orthoformic acid
Orthoformic acid is a carboxylic acid with the chemical formula CH3OH,...
Orthogenesis
Orthogenesis is the theory that evolution is driven by an unstoppable ...
Orthogenetic
The term orthogenetic refers to the sequential development or evolutio...
Orthogenic
The meaning of orthogenic is to create a prescribed pattern or structu...
Orthognathic surgery
Orthognathic surgery is a type of surgery that involves correcting abn...
Orthognathous
Orthognathous means having straight or correct alignment of the jaws....
Orthogonal
Orthogonal means perpendicular or independent in terms of relationship...
Orthogonal matrix
An orthogonal matrix is a square matrix where the rows are mutually pe...
Orthogonal projection
Orthogonal projection is the process of projecting a vector onto anoth...
Orthogonal trajectory
An orthogonal trajectory is a curve that intersects another set of cur...
Orthogonalize
Orthogonalize means to make independent or perpendicular....
Orthographer
An orthographer is a person skilled in the art of correct spelling and...