Definition of echinoderm in English:

echinoderm

Line breaks: ech¦ino|derm
Pronunciation: /ɪˈkʌɪnə(ʊ)dəːm
 
, ˈɛkɪn-/

noun

Zoology
A marine invertebrate of the phylum Echinodermata, such as a starfish, sea urchin, or sea cucumber.
More example sentences
  • Included in this clade are three very different-looking phyla - the echinoderms, hemichordates and chordates.
  • Basically what is available in the fossil record are only hard parts-bones and teeth for vertebrates, and shells for mollusks, arthropods and echinoderms.
  • These taxa consist of a broad array of organisms, including foraminifers, corals, bryozoans, mollusks, echinoderms, and fish.

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Pronunciation: niːˈɒt(ə)ni
noun
retention of juvenile features in the adult animal