swordtail Hear it!

swordtail definition

sword·tail (sôrd′tāl′)

noun

any of a genus (Xiphophorus) of fishes that are livebearers: the male has the lower caudal fin rays drawn out in a swordlike process

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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