SEA URCHIN
Dictionary entry overview: What does sea urchin mean? • SEA URCHIN (noun)
The noun SEA URCHIN has 1 sense:
1. shallow-water echinoderms having soft bodies enclosed in thin spiny globular shells
Familiarity information: SEA URCHIN used as a noun is very rare.
Dictionary entry details
• SEA URCHIN (noun)
Meaning:
Shallow-water echinoderms having soft bodies enclosed in thin spiny globular shells
Classified under:
Nouns denoting animals
Hypernyms ("sea urchin" is a kind of...):
echinoderm (marine invertebrates with tube feet and five-part radially symmetrical bodies)
Hyponyms (each of the following is a kind of "sea urchin"):
Echinus esculentus; edible sea urchin (a sea urchin that can be eaten)
sand dollar (flattened disklike sea urchins that live on sandy bottoms)
heart urchin (sea urchin having a heart-shaped body in a rigid spiny shell)
Holonyms ("sea urchin" is a member of...):
class Echinoidea; Echinoidea (sea urchins and sand dollars)
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