English dictionary: words starting with protol

noun

A hypothetical lost parent language from which actual languages are derived.

Usage examples:

His possible answer to this is that ‘the socio-cultural transition from protolanguages to modern la…

adjective

(now disused). designating or relating to the period in the development of human culture during which simple stone tools begin to be used; designating or relating to the earliest part of the stone age.

noun

The type description of a species, genus, etc. in later use: specifically the full details (diagnosis, description, synonymy, distributional data, citation of specimens, etc.) accompanying a name at its first publication.