Student Dictionary

One entry found for echinoderm.
Main Entry: echi·no·derm
Pronunciation: i-primarystresskimacr-nschwa-secondarystressdschwarm
Function: noun
: any of a phylum of marine invertebrate animals (as starfishes, sea urchins, and sea cucumbers) that have a number of similar body parts (as the arms of a starfish) arranged around a central axis, a calcium-containing inner skeleton, and a water-vascular system

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