Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
polychromic is an adjective meaning "having or exhibiting many colors". It carries one recorded sense.
having or exhibiting many colors
Definitions, synonyms and semantic relations for polychromic come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.