Definition of protolinguistic in US English:

protolinguistic

adjective

  • 1Designating or relating to the beginnings of language; specifically designating or relating to non-verbal means of communication from which spoken language is thought to have developed.

  • 2Of or relating to the study of protolinguistics. rare.

Origin

1950s; earliest use found in Journal of American Folklore. From proto- + linguistic.

Pronunciation

protolinguistic

/ˌprəʊtə(ʊ)lɪŋˈɡwɪstɪk/