Crossword clue: acting as or providing a complement (something that completes the whole)
3 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).
Possible answers
acting as or providing a complement (something that completes the whole)
either one of two chromatic colors that when mixed together give white (in the case of lights) or grey (in the case of p
acting as or providing a complement (something that completes the whole)