An archaic or rare variant of chromatic; relating to color or the chromatic scale in music.
From 'chromatic' + '-al' (adjectival suffix), representing an older form of the adjective. Found in historical texts from the 17th-18th centuries before 'chromatic' standardized.
This word shows how English was still experimenting with forming adjectives—you see it in old music theory texts, but the field eventually standardized on 'chromatic' without the extra '-al'.
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