a combining form meaning “old” or “ancient,” especially in reference to former geologic time periods, used in the formation of compound words: paleobotany.
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Question 1 of 7
What does “vacillate” mean?
Also especially before a vowel, pale-; especially British, palae-, palaeo- .
Origin of paleo-
From Greek palaio-, combining form of palaiós
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for paleo-
before a vowel pale-
variants (esp US) of palaeo-
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Medical definitions for paleo-
Ancient; prehistoric; old:paleopathology.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Scientific definitions for paleo-
A prefix that means prehistoric (as in paleontology) or early or primitive (as in Paleolithic).
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.