The use of spoken, manual, written, and other symbols to express, represent, or receive communication. [L. lingua]
- American Sign L. (ASL) the manual sign and gesture l. used by the deaf community in the United States. It is a l. distinct from English, with its own grammar and syntax, but no written form.
- body l. 1. the expression of thoughts and feelings by means of nonverbal bodily movements, e.g., gestures, or via the symptoms of hysterical conversion; See kinesics. 2. communication by means of bodily signs.

Medical dictionary. 2011.