authigenic

[ aw-thi-jen-ik ]

adjective

, Geology.

1. (of a constituent of a rock) formed in the rock where it is found. Compare allogenic ( def 1 ).

authigenic

/ ˌɔːθɪˈdʒɛnɪk /

adjective

1. (of minerals) having crystallized in a sediment during or after deposition

Word History and Origins

Origin of authigenic¹

1885–90; < German Authigen < Greek authigenḗs native to a specific place ( aûthi there + -genēs born) + -ic; genic

Word History and Origins

Origin of authigenic¹

C19: from German authigene from Greek authigenēs native + -ic