SINCE 1828
Echinoidea
noun plural
Ech·i·noi·dea
| \ ˌek-ə-ˈnȯi-dē-ə
\
\
Medical Definition of Echinoidea
: a class of motile bottom-dwelling echinoderms comprising the sea urchins and related forms
Other Words from Echinoidea
echinoid
\ ˈek-ə-ˌnȯid
\
noun
\
noun
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