| echinoderm | <zoology> One of the Echinodermata. Source: Websters Dictionary (01 Mar 1998) |
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| echinodermal | <zoology> Relating or belonging to the echinoderms. Source: Websters Dictionary (01 Mar 1998) |
| Echinodermata | <marine biology> Phylum of exclusively marine animals. The phylum is divided into 5 classes: the Asteroidea (starfish), the Echinoidea (sea urchins), the Ophiuroidea (brittle stars and basket stars), the Holothuroidea (the sea cucumbers) and the Crinoidea (sea lilies and feather stars). (19 Jan 1998) |
| echinodermatous | <zoology> Relating to Echinodermata; echinodermal. Source: Websters Dictionary (01 Mar 1998) |