释义 |
pen·nat·u·la·cea \pəˌnachəˈlāshēə\ noun plural Usage: capitalized Etymology: New Latin, from Pennatula + -acea : 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 • pen·nat·u·la·cean \ ̷ ̷| ̷ ̷ ̷ ̷|lāshən\ adjective or noun • pen·nat·u·la·ceous \-shəs\ adjective |