Chemistry. an atom or atomic group that takes the place of another atom or group present in the molecule of the original compound.
having been or capable of being substituted.
Origin of substituent
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for substituent
Historical Examples of substituent
Here we have assumed the substituent groups to be alike; when they are unlike, a greater number of isomers is possible.
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
substituted or substitutable
Word Origin for substituent
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