Definitions

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 language of lexigrams developed for use by non-human primates.

Etymologies

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.

Examples

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