Definition of protogeneous in English:

protogeneous

adjective

rare
  • Of a primary or original nature; belonging to an early stage of existence.

Origin

Mid 17th century. From ancient Greek πρωτογενής first-born, primeval + -ous.

Pronunciation

protogeneous

/ˌprəʊtə(ʊ)ˈdʒiːnɪəs/