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stereoisomer

American  
[ster-ee-oh-ahy-suh-mer, steer-] / ˌstɛr i oʊˈaɪ sə mər, ˌstɪər- /

noun

Chemistry.

  1. any of two or more isomers exhibiting stereoisomerism.

stereoisomer British  
/ ˌstɪər-, ˌstɛrɪəʊˈaɪsəmə /

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 Scientific  
/ stĕr′ē-ō-ī′sə-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.

  2. Compare structural isomer

Etymology

Origin of stereoisomer

First recorded in 1895–1900; stereo- + isomer

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Specifically, Evans is interested in enantiomers, a specific class of stereoisomer that involves mirror images of the same molecule.

From Scientific American • Oct. 4, 2013

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.