The Collaborative International Dictionary of English v.0.48:
Gestural \Ges"tur*al\, a. Relating to gesture. [1913 Webster]WordNet (r) 3.0 (2006):
gestural adj 1: used of the language of the deaf [syn: gestural, sign(a), signed, sign-language(a)] 2: being other than verbal communication; "the study of gestural communication"; "art like gesture is a form of nonverbal expression" [syn: gestural, nonverbal]