Definition of authigenous in English:
authigenous
adjective
Geology
Pronunciation
authigenous
/ɔːˈθɪdʒɪnəs/ /ɔːˈθɪdʒ(ə)nəs/ Origin
Late 19th century; earliest use found in Geological Magazine. Alteration of authigenic, with suffix substitution, after adjectives in -genous.