Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
gestural is an adjective meaning "used of the language of the deaf". It carries 2 recorded senses.
used of the language of the deaf
being other than verbal communication
“the study of gestural communication”
“art like gesture is a form of nonverbal expression”
Definitions, synonyms and semantic relations for gestural come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.