GRAYSCALE
Etymology
Noun
grayscale (plural grayscales)
(photography) A printed strip of graduated tones used to check exposure and development times.
Adjective
grayscale (not comparable)
(imaging) Black and white, representing color with shades of gray.
Synonyms
• black and white (“in shades of gray”)
• monochrome
Antonyms
• black and white (“easily divided into two groups”)
Verb
grayscale (third-person singular simple present grayscales, present participle grayscaling, simple past and past participle grayscaled)
(transitive) To convert to grayscale.
Anagrams
• clary sage
Source: Wiktionary