- Neogene⇄adj. of or having to do with these divisions or their rocks.
- Neogene⇄Neogene, noun, adjective.
- Neogene⇄noun 1. the later of two divisions of the Cenozoic era (comprising the Miocene, Pliocene, Pleistocene, and Recent periods).
2. the rock strata formed during this division.
3. Neocene.