noun Date: 1960 a sign language for the deaf in which meaning is conveyed by a system of articulated hand gestures and their placement relative to the upper body
AMERICAN SIGN LANGUAGE
Meaning of AMERICAN SIGN LANGUAGE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012