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