chemical reaction

[ kem-i-kuhl ree-ak-shuhn ]
See synonyms for chemical reaction on
  1. Chemistry. reaction (def. 7).

Origin of chemical reaction

First recorded in 1780–90

Words Nearby chemical reaction Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use chemical reaction in a sentence

  • For every 50 degrees Centigrade, you change the chemical reaction rate by a factor of two.

  • Gastric juice is slightly acid in its chemical reaction, containing about .2 per cent free hydrochloric acid.

    A Civic Biology | George William Hunter
  • The iron oxide is put in it to make it more basic for the chemical reaction that is to take place.

    The Iron Puddler | James J. Davis
  • And then, as though slowly dissolving through some chemical reaction, the old man began to fade.

    The Mating of the Moons | Kenneth O'Hara
  • If the soil contains acid, a chemical reaction occurs between it and zinc sulfid, and hydrogen sulfid gas is liberated.

  • Man cannot love the insect or the chemical reaction which he studies, without sacrificing a part of himself.

    The Montessori Method | Maria Montessori

British Dictionary definitions for chemical reaction

chemical reaction

  1. a process that involves changes in the structure and energy content of atoms, molecules, or ions but not their nuclei: Compare nuclear reaction

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

Cultural definitions for chemical reaction

chemical reaction

A process in which atoms of the same or different elements rearrange themselves to form a new substance. While they do so, they either absorb heat or give it off.

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.