echinoid

About 0.05 uses per million words.

Meaning

1. noun Any sea urchin or sea dollar of the class Echinoidea.
2. adjective Resembling a sea urchin.

Similar words

echinid echinometrid euechinoid echinothurioid echinacean sea urchin echinoderm echinus heart urchin echinasterid

Often followed by

spines species fragments diadema and fauna test larvae type

Word family

echinoids