Echinus meaning

The echinus is the bulbous molding below the abacus in a Doric capital.


Echinus definitions

Word backwards sunihce
Part of speech Noun
Syllabic division e-chi-nus
Plural The plural of echinus is echini.
Total letters 7
Vogais (3) e,i,u
Consonants (4) c,h,n,s

Echinus: Understanding the Spiny Sea Urchin

Echinus, commonly known as the sea urchin, is a fascinating marine creature found in oceans around the world. These spiny animals belong to the phylum Echinodermata, along with starfish and sea cucumbers. Echinus comes in a variety of shapes, sizes, and colors, making them a diverse group of organisms in the ocean.

Physical Characteristics

Sea urchins have a round, domed body covered in sharp, spiny protrusions that serve as a protective mechanism against predators. These spines come in various sizes and shapes, depending on the species. Echinus also possess tube feet located on their underside, which help them navigate and grip onto surfaces in their marine habitats.

Habitat and Diet

Echinus can be found in oceans worldwide, from shallow coastal waters to deep-sea environments. They are often found in rocky areas or coral reefs, where they hide among crevices or burrow into the seabed. Sea urchins are primarily herbivores, feeding on algae and seaweed using their specialized feeding appendages known as Aristotle's lantern.

Ecological Importance

Sea urchins play a vital role in marine ecosystems by controlling algae growth. By consuming algae, they prevent overgrowth and maintain a balance in the underwater environment. Furthermore, Echinus serves as food for various predators, contributing to the intricate food web of the ocean.

Reproduction and Regeneration

Echinus reproduce by releasing eggs and sperm into the water, where fertilization occurs externally. The fertilized eggs develop into larvae, which then settle on the ocean floor and metamorphose into adult sea urchins. Interestingly, sea urchins have the remarkable ability to regenerate lost spines or body parts, allowing them to recover from injuries or damage.

Threats and Conservation

Despite their important ecological role, sea urchins face threats from human activities such as overfishing, pollution, and habitat destruction. Conservation efforts are essential to protect Echinus populations and ensure the health of marine ecosystems. By raising awareness and promoting sustainable practices, we can help safeguard these fascinating creatures for future generations.


Echinus Examples

  1. The echinus is the convex molding found below the abacus on a Doric column.
  2. Marine biologists study the echinus, a type of sea urchin found in oceans around the world.
  3. The architect carefully designed the echinus shape of the building's exterior detail.
  4. Art historians admire the intricate echinus patterns on ancient Greek pottery.
  5. The interior designer selected a lamp with an echinus-shaped base for the living room.
  6. During the tour of the museum, visitors learned about the significance of the echinus in classical architecture.
  7. Botanists identified a new species of plant with an echinus-like flower structure.
  8. The artist incorporated the echinus motif into a series of abstract paintings.
  9. Children collected colorful echinus shells along the shore during their beach vacation.
  10. The science teacher explained the function of the echinus in the anatomy of a sea star.


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  • Updated 26/03/2024 - 16:32:32