phylum mollusca
English Thesaurus
1. gastropods; bivalves; cephalopods; chitons (noun.animal)
| hypernym | : | phylum, |
| definition | : | (biology) the major taxonomic group of animals and plants; contains classes (noun.group) |
| member holonym | : | mollusc, mollusk, shellfish, |
| definition | : | invertebrate having a soft unsegmented body usually enclosed in a shell (noun.animal) |
| member holonym | : | class scaphopoda, scaphopoda, |
| definition | : | small class of bilaterally symmetrical marine forms comprising the tooth shells (noun.animal) |
| member holonym | : | class polyplacophora, polyplacophora, |
| definition | : | small class of marine mollusks comprising the chitons; sometimes considered an order of the subclass Amphineura (noun.animal) |
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