sign language

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sign language

Etymology: L, signum + lingua, tongue
a form of communication often used with and among deaf people, consisting of hand and body movements. Many variations exist, including American Sign Language (ASL). Other forms of manual communication are Signed English and finger spelling. Compare body language.

sign language

A formal language of nonverbal communication based on hand shapes and gestures, facial expressions and movements.

sign language

Audiology A formal language of nonverbal communication based on hand shapes, facial expressions, and movements. See Americans with Disabilities Act.

sign lan·guage

(sīn lang'gwăj)
A system of manual communication used by the deaf. True sign languages such as American Sign Language (ASL) have a complete representation of morphology, semantics, and syntax.