from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Of or belonging to the geologic time, rock series, or sedimentary deposits of the fourth epoch of the Tertiary Period, characterized by the development of grasses and grazing mammals. See Table at geologic time.
- n. The Miocene Epoch or its system of deposits.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Of a geologic epoch within the Neogene period from about 23 to 5.3 million years ago; marked by the drift of continents to their present position.
- proper n. The Miocene epoch.
from the GNU version of the Collaborative International Dictionary of English
- adj. Of or pertaining to the middle division of the Tertiary.
from The Century Dictionary and Cyclopedia
- In geology, one of Lyell's subdivisions of the Tertiary. See Tertiary.
- n. In geology, the Miocene strata. Also spelled Meiocene.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. from 25 million to 13 million years ago; appearance of grazing mammals
Greek meiōn, less, + -cene.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Ancient Greek μείων (meiōn, "less") + καινός (kainos, "new"). (Wiktionary)