SEA URCHIN
Source: 567
Sea″ ur″chin (?). (Zoöl.) Any one of numerous species of echinoderms of the order Echinoidea. When living they are covered with movable spines which are often long and sharp.
Source: 567
Sea″ ur″chin (?). (Zoöl.) Any one of numerous species of echinoderms of the order Echinoidea. When living they are covered with movable spines which are often long and sharp.