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