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Glite Dictionary
Echinoidea

Echinoidea

9.9
A group of sea animals with hard, spiny shells like sea urchins and sand dollars
  • noun
  • /ˌɛkɪˈnɔɪdiə/
  • Specialized
translation icon : Echinoidea
  • The echinoidea are fascinating creatures, known for their hard, spiny shells and unique appearance.

Examples

  • During our dive, we spotted several echinoidea among the coral, each one more vibrant than the last.

  • Marine biologists study echinoidea to understand their role in the ocean ecosystem and their impact on marine life.

  • Echinodermata: Echinoidea. D. Keith Serafy and F. Julian Fell. 1985. NOAA Tech. Rep. NMFS 33, 27 p., 42 figs. (PCA03/MFA01).

    Academic text (1996)

Synonyms

class Echinoidea
vsEchinoidea
  • Specialized
9.6

A group of sea animals like sea urchins and sand dollars with spines and body parts arranged around the center

focuses on the hard spiny shell rather than symmetry

Compounds

class Echinoidea
  • Specialized
9.6

A group of sea animals like sea urchins and sand dollars with spines and body parts arranged around the center

Surface Forms

Echinoidea singular
Echinoideas plural

Etymology

Echinoidea comes from the Greek root echinos, meaning 'hedgehog', and the ending -oidea, meaning 'like' or 'in the shape of'. So Echinoidea literally means 'hedgehog-like', a useful image to remember these spiny sea animals such as sea urchins and sand dollars.