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Definition of Oligocene
1. Noun. From 40 million to 25 million years ago; appearance of sabertoothed cats.
Exact synonyms: Oligocene Epoch
Group relationships: Tertiary, Tertiary Period
Generic synonyms: Epoch
Group relationships: Tertiary, Tertiary Period
Generic synonyms: Epoch
Definition of Oligocene
1. a. Of, pertaining to, or designating, certain strata which occupy an intermediate position between the Eocene and Miocene periods.
Definition of Oligocene
1. Adjective. (geology) Of a geologic epoch within the Paleogene period from about 34 to 23 million years ago; marked by the rapid evolution in a warm climate. ¹
2. Proper noun. (geology) The Oligocene epoch. ¹
¹ Source: wiktionary.com
Definition of Oligocene
1. [adj]
Medical Definition of Oligocene
1.