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sea pen

noun
1.
any of several colonial coelenterates of the genus Pennatula and related genera, having the shape of a fleshy feather.
Origin
1755-1765
1755-65
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for sea pen
  • The yellowest light came from a sea pen, and this definitely merits further investigation.
  • Interactions between a sea pen and seven of its predators.
British Dictionary definitions for sea pen

sea pen

noun
1.
any of various anthozoan coelenterates of the genus Pennatula and related genera, forming fleshy feather-like colonies in warm seas: order Pennatulacea
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Encyclopedia Article for sea pen

any of the 300 species of the order Pennatulacea, colonial invertebrate marine animals of the class Anthozoa (phylum Cnidaria). The name sea pen derives from their resemblance to quill pens. They occur in shallow and deep waters from polar seas to the tropics.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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