1. Without color; relating to or producing images without color or with only black, white, and gray tones
The photograph was rendered in achromatic tones.
A fotografia foi renderizada em tons acromáticos.
2. In optics, relating to a lens or optical system that minimizes chromatic aberration
An achromatic lens corrects color distortion in the image.
Uma lente acromática corrige a distorção de cor na imagem.
3. In music, without regard to chromatic notes; using only diatonic intervals
The achromatic scale uses only natural notes.
A escala acromática usa apenas notas naturais.