organogenous, a. Petrol.
(ˌɔːgənəʊˈdʒɛnəs)
[f. organo- + -genous.]
Of a rock: formed from organic materials.
| 1881 E. Renevier in Proc. Geol. Assoc. VI. 426 (table) Organogenous.—Sedimentary by organic means. 1967 Oceanogr. & Marine Biol. V. 503 The soft substrata of the circalittoral zone are made up of terrigenous sediments..and organogenous remnants. |