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The conspicuous markings of a noxious or unpalatable organism, such as a skunk, that serve to warn off potential predators. Also called aposematic coloration.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
aposematic colorationany striking or conspicuous markings occurring on an animal which indicate to potential predators (who presumably have to learn the association) that the organism is distasteful. see MIMICRY.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005