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substitution reaction

American  

noun

Chemistry.

  1. the replacement of an atom or group of atoms in a compound by another atom or group.

Example Sentences

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For example, the reaction between ethane and molecular chlorine depicted here is a substitution reaction:

From Textbooks • Feb. 14, 2019

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.