Meaning of Müllerian mimicry

Mül•le'ri•an mim'icry

Pronunciation: (my-lēr'ē-un, mu-, mi-), [key]
— Ecol. Ecol.
  1. the resemblance in appearance of two or more unpalatable species, which are avoided by predators to a greater degree than any one of the species would be otherwise.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.