Thesaurus: echinoidea
The class Echinodermata which includes the sea urchins. They have a calcareous, usually more or less spheroidal or disk-shaped, composed of many united plates, and covered with movable spines. See Spatangoid, Clypeastroi…
Related headwords
urchinsdefinitionechinodermatadefinitioncalcareousdefinitionclassdefinitionclypeastroiddefinitioncomposeddefinitioncovereddefinitiondisk-shapeddefinitiondollarsdefinitionincludesdefinitionlessdefinitionmovabledefinitionplatesdefinitionsanddefinitionspatangoiddefinitionspheroidaldefinitionspinesdefinitiontheydefinitionuniteddefinitionechinococcusfamilyechinodermfamilyechinoderm familyfamilyechinoderm genusfamilyechinodermalfamilyechinodermatousfamilyechinodermsfamilyechinofaunafamilyechinoidfamily
Definitions
- n. pl. The class class="def-link" href="https://vividlex.com/word/echinodermata">Echinodermata which includes the sea urchins. They have a calcareous, usually more or less spheroidal or disk-shaped, composed of many united plates, and covered with movable spines. See Spatangoid, Clypeastroid.
- n sea urchins and sand dollars