grayscale

or gray scale

[ grey-skeyl ]
/ ˈgreɪˌskeɪl /

noun

a scale of achromatic colors having several, usually ten, equal gradations ranging from white to black, used in television and photography.

Origin of grayscale

First recorded in 1935–40

Words nearby grayscale

Medical definitions for gray scale

gray scale

n.

Gray-scale ultrasonography.