Definitions for echinoidɪˈkaɪ nɔɪd, ˈɛk əˌnɔɪd
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Random House Webster's College Dictionary
e•chi•noidɪˈkaɪ nɔɪd, ˈɛk əˌnɔɪd(n.)
any echinoderm of the class Echinoidea, comprising sea urchins and sand dollars, characterized by a rounded, armless body and a rigid endoskeleton with movable spines.
Category: Invertebrates
(adj.)of, belonging to, or resembling the echinoids.
Category: Invertebrates
Origin of echinoid:
1850–55; < NL Echinoidea; see echinus , -oidea
Wiktionary
echinoid(Noun)
Any sea urchin or sea dollar of the class Echinoidea
Webster Dictionary
Echinoid(adj)
of or pertaining to the Echinoidea
Echinoid(noun)
one of the Echinoidea
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