The Collaborative International Dictionary
Echinoid
Echinoid \E*chi"noid\, a. [Echinus + -oid.] (Zo["o]l.) Of or pertaining to the Echinoidea. -- n. One of the Echinoidea. [1913 Webster] ||
Wiktionary
echinoid
n. (context zoology English) Any sea urchin or sea dollar of the class ''Echinoidea''
Usage examples of "echinoid".
The Iron Council passed over footprints: the stiletto holes of an echinoid rex, the strange tracks of an inchman, pounded earth in clumps four or five yards apart.