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stereoisomer

[ster-ee-oh-ahy-suh-mer, steer-]
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noun Chemistry.
  1. any of two or more isomers exhibiting stereoisomerism.

Origin of stereoisomer

First recorded in 1895–1900; stereo- + isomer
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for stereoisomer

stereoisomer

noun
  1. chem one of the isomers of a compound that exhibits stereoisomerism
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

stereoisomer in Medicine

stereoisomer

(stĕr′ē-ō-īsə-mər)
n.
  1. A molecule containing the same number and kind of atomic groupings as another but having a different spatial arrangement, thus exhibiting different properties.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

stereoisomer in Science

stereoisomer

[stĕr′ē-ō-īsə-mər]
  1. Any of two or more isomers having the same linkages between the atoms but differing in the way these atoms are arranged in space. There are two types of stereoisomers, geometric isomers and enantiomers. Compare structural isomer.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.