adj.
Pronunciation: ' pl ī s-t ə - ˌ s ē n
Function: adjective
Etymology: Greek pleistos most + International Scientific Vocabulary -cene; akin to Greek plei ō n more
Date: 1839
: of, relating to, or being the earlier epoch of the Quaternary or the corresponding series of rocks ― see GEOLOGIC TIME table
– Pleistocene noun