Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun Any of various corals of the order Pennatulacea, having a flexible skeleton in the form of a long central shaft with numerous branches on each side.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun A colonial marine cnidarian of the order Pennatulacea.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun fleshy featherlike warm-water colonies

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[From its resemblance to a quill pen.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From the feather-like appearance of some species, reminiscent of antique quill pens.

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Examples

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