a combining form borrowed from Greek, where it meant “solid”, used with reference to hardness, solidity, three-dimensionality in the formation of compound words: stereochemistry; stereogram; stereoscope.
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Also especially before a vowel, stere-.
Origin of stereo-
From the Greek word stereós
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for stereo-
sometimes before a vowel stere-
indicating three-dimensional quality or soliditystereoscope
Word Origin for stereo-
from Greek stereos solid
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
Word Origin and History for stereo-
word-forming element, before vowels stere-, from comb. form of Greek stereos "solid" (see stereotype).
Online Etymology Dictionary, © 2010 Douglas Harper
Medicine definitions for stereo-
Solid; solid body:stereotropism.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.