Daily Almanac for
Dec 1, 2009
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pec'toral fin'




(in fishes) either of a pair of fins usually situated behind the head, one on each side, and corresponding to the forelimbs of higher vertebrates. See illus. under fish.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

pectoral crosspectoral girdle
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