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Meaning of nudibranch

nu•di•branch

Pronunciation: (n'du-brangk", ny'-), [key]
— n.
  1. a shell-less, marine snail of the suborder Nudibranchia, having external, often branched respiratory appendages on the back and sides.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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