- metachrosis
- A change of color, such as occurs in certain animals, e.g., the chameleon, by expansion and contraction of chromatophores. [meta- + G. chrosis, a coloring]
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meta·chro·sis .met-ə-'krō-səs n, pl -chro·ses -.sēz the power of some animals (as many fishes and reptiles) to change color voluntarily by the expansion of special pigment cells* * *
meta·chro·sis (met″ə-kroґsis) [meta- + Gr. chrōsis coloring] change of color in animals.
Medical dictionary. 2011.