Definition of protogenetic in English:

protogenetic

adjective

  • Geology. Designating mineral inclusions in which the included crystals are older than the host material.

Origin

Late 19th century (in an earlier sense). From proto- + genetic.

Pronunciation

protogenetic

/ˌprəʊtə(ʊ)dʒɪˈnɛtɪk/