countershading(redirected from countershaded)
Also found in: Medical.
Coloration of an animal in which the upper side is darker in color than the underside, thought to be a form of camouflage.
(Zoology) (in the coloration of certain animals) a pattern, serving as camouflage, in which dark colours occur on parts of the body exposed to the light and pale colours on parts in the shade
coun•ter•shad•ing(ˈkaʊn tərˌʃeɪ dɪŋ)
(of an animal) coloration that is dark on parts of the body surface that are usu. exposed to the sun and light on parts usu. in shade.