Definition of pennatula
1 capitalized : a common genus (the type of the family Pennatulidae) of sea pens
2 plural pennatulae \-chəˌlē\ or pennatulas : sea pen
pennatulid\-lə̇d\ adjective or noun
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Origin and Etymology of pennatula
New Latin, from Late Latin, feminine of pennatulus winged, from Latin pennatus winged + -ulus -ule
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