Pennatulacea

plural noun
Pen·nat·u·la·cea | \ pəˌnachəˈlāshēə \

Definition of Pennatulacea 

: an order of Alcyonaria including the sea pens, sea pansies, and related forms that develop a colony which usually resembles a feather, leaf, or club, is often more or less bilaterally symmetrical with the polyps arranged along the distal part of a central axis or on lateral branches and has the basal end of the axis destitute of polyps and embedded in the mud of the sea bottom

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Other words from Pennatulacea

pennatulacean \⸗¦⸗⸗¦lāshən \ adjective or noun
pennatulaceous \-shəs \ adjective

History and Etymology for Pennatulacea

New Latin, from Pennatula + -acea

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