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sign language

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noun

Also called sign. any of several visual-gestural systems of communication, especially employing manual gestures, as used among deaf people.
any means of communication, as between speakers of different languages, using gestures.

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Origin of sign language

First recorded in 1840–50
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for sign language

sign language

noun

another word for signing
any system of communication by manual signs or gestures
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for sign language

sign language

n.

A language that uses a system of manual, facial, and other body movements as the means of communication, especially among deaf people.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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