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diastereomer

[dahy-uh-ster-ee-uh-mer, -steer-] /ˌdaɪ əˈstɛr i ə mər, -ˈstɪər-/
noun, Chemistry
1.
either of a pair of stereoisomers that are not mirror images of each other.
Also called diastereoisomer
[dahy-uh-ster-ee-oh-ahy-suh-mer, -steer-] /ˌdaɪ əˌstɛr i oʊˈaɪ sə mər, -ˌstɪər-/ (Show IPA)
.
Compare enantiomer.
Origin of diastereomer
1935-1940
1935-40; dia- + stereo(iso)mer
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for diastereoisomer

diastereoisomer

/ˌdaɪəˌstɛrɪəʊˈaɪsəmə/
noun
1.
(chem) a type of isomer that differs in the spatial arrangement of atoms in the molecule, but is not a mirror image; a stereoisomer that is not an enantiomer
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
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