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