Achromatic

ak-ro-mafik, a. (Opt.) Free from color; not showing color, from the decomposition of light. [Gr. a priv. and chroma, color.] — Ach rem at i city, -tis'T-tT, Acnro 'matism. n. State of being achromatic. — Achro'matiza'tion, n. Act of rendering, etc. deprivation of color. — Achro'inatopsy. n. Inability to distinguish colors color-blindnes* Daltonism. [Gr. ops is. sight.]