Definition of Pectinacea
:a suborder of Filibranchia comprising active bivalve mollusks that have a fan-shaped shell and no siphons including the typical pectens and related forms
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Pectinacea
plural noun
Pec·ti·na·cea
\
ˌpektəˈnāshēə
\
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Origin and Etymology of pectinacea
New Latin, from Pectin-, Pecten, type genus + -acea
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