from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun An artificial language using symbols to represent words, created for experimental communication between humans and nonhuman primates.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- proper noun An
artificial languageof lexigramsdeveloped for use by non-human primates.
from The American Heritage® Dictionary of the English Language, 4th Edition
[After Robert Mearns Yerkes.]
from Wiktionary, Creative Commons Attribution/Share-Alike License
Yerkes + -ish, after Robert M. Yerkes, the founder of the laboratory within which the lexigrams were first used.
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