Pneumoskeleton
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Pneu`mo`skel´e`ton
n. | 1. | (Zool.) A chitinous structure which supports the gill in some invertebrates. |
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
n. | 1. | (Zool.) A chitinous structure which supports the gill in some invertebrates. |