noun. a language composed of geometric shapes which has been taught to non-human primates in analyses of language learning and usage. There has been some controversy about whether animals trained with Yerkish demonstrate authentic language capacity.

YERKISH: "Yerkish is an artificial language developed to test within primates. "
Cite this page: N., Pam M.S., "YERKISH," in, April 29, 2013, (accessed April 23, 2021).