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

1895–1900; stereo- + isomer Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
stereoisomer (ˌstɛrɪəʊˈaɪsəmə, ˌstɪər-)
chem one of the isomers of a compound that exhibits stereoisomerism

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American Heritage
Medical Dictionary

stereoisomer ster·e·o·i·so·mer (stěr'ē-ō-ī'sə-mər, stēr'-)
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.
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American Heritage
Science Dictionary
stereoisomer   (stěr'ē-ō-ī'sə-mər)  Pronunciation Key 
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.
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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