grayscale

Noun

 * 1)  A printed strip of graduated tones used to check exposure and development times.
 * 2)  The use of black and white, representing color with shades of gray.

Adjective

 * 1)  Black and white, representing color with shades of gray.

Translations

 * Chinese:
 * Mandarin: 灰度
 * Maori: kiwikiwitea

Verb

 * 1)  To convert to grayscale.