adj.
Pronunciation: ' n ē - ə - ˌ j ē n
Function: adjective
Etymology: International Scientific Vocabulary ne- + -gene (fr. Greek -gen ē s born) ― more at -GEN
Date: 1878
: of, relating to, or being the later portion of the Tertiary including the Miocene and Pliocene or the corresponding system of rocks
– Neogene noun