protogine

noun

pro·​to·​gine

variants or less commonly protogene

ˈprōtəˌjēn

plural -s

1

: a granite that is especially prevalent in the central Alps and that has a gneissoid texture probably due to dynamic action

2

: a rock with authigenic constituents

Word History

Etymology

protogine from French, from prot- + -gine (from Greek -genēs born); protogene alteration (influenced by -gene) of protogine

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