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substituent

[suhb-stich-oo-uh nt]
noun
  1. Chemistry. an atom or atomic group that takes the place of another atom or group present in the molecule of the original compound.
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adjective
  1. having been or capable of being substituted.
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Origin of substituent

1890–95; < Latin substituent- (stem of substituēns), present participle of substituere to substitute, equivalent to sub- sub- + -stitu-, combining form of statuere to set up, erect (see statue) + -ent- -ent
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for substituent

Historical Examples

  • Here we have assumed the substituent groups to be alike; when they are unlike, a greater number of isomers is possible.

    Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1

    Various


British Dictionary definitions for substituent

substituent

noun
  1. chem an atom or group that replaces another atom or group in a molecule or can be regarded as replacing an atom in a parent compound
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adjective
  1. substituted or substitutable
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Word Origin

C19: from Latin substituere to substitute
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