Adjacent Words

Pleistocene definitions

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WordNet (r) 3.0 (2005)

n
1: from two million to 11 thousand years ago; extensive glaciation of the northern hemisphere; the time of human evolution [syn: Pleistocene, Pleistocene epoch, Glacial epoch]

Merriam Webster's

adjective Etymology: Greek pleistos most + International Scientific Vocabulary -cene; akin to Greek plei?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

Oxford Reference Dictionary

adj. & n. Geol. --adj. of or relating to the first epoch of the Quaternary period marked by great fluctuations in temperature with glacial periods followed by interglacial periods. --n. this epoch or system. Also called Ice age. Usage: Cf. Appendix II. Etymology: Gk pleistos most + kainos new

Webster's 1913 Dictionary

Pleistocene Pleis"to*cene, a. [Gr. ? most + ? new.] (Geol.) Of or pertaining to the epoch, or the deposits, following the Tertiary, and immediately preceding man. -- n. The Pleistocene epoch, or deposits.