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Definition of Neocomian
1. n. A term applied to the lowest deposits of the Cretaceous or chalk formation of Europe, being the lower greensand.
2. a. Of or pertaining to the lower greensand.
Definition of Neocomian
1. Adjective. (geology obsolete) Of or pertaining to the (w Lower Greensand). ¹
¹ Source: wiktionary.com
Medical Definition of Neocomian
1.