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