an electronic special-effects system for combining a desired background with live foreground action.
1. variant of before a vowel: chromatid.
[kroh-meyt] /ˈkroʊ meɪt/ noun 1. a salt of , as potassium chromate, K 2 CrO 4 . /ˈkrəʊˌmeɪt/ noun 1. any salt or ester of chromic acid. Simple chromate salts contain the divalent ion, CrO42–, and are orange chromate chro·mate (krō’māt’) n. A salt of chromic acid. chromate (krō’māt’) A chemical compound containing the group […]
[kroh-mat-ik, kruh-] /kroʊˈmæt ɪk, krə-/ adjective 1. pertaining to color or colors. 2. Music. /krəˈmætɪk/ adjective 1. of, relating to, or characterized by a colour or colours 2. (music) adj. 1590s (of music), “progressing by half-tones;” 1831 as “pertaining to color,” from Latin chromaticus, from Greek khromatikos “relating to color, suited for color,” from khroma […]
noun, Optics. 1. the variation of either the focal length or the magnification of a lens system with different wavelengths of light, characterized by prismatic coloring at the edges of the optical image and color distortion within it. noun 1. a defect in a lens system in which different wavelengths of light are focused at […]