reactant
[ ree-ak-tuh nt ]
/ riˈæk tənt /
noun
a person or thing that reacts.
Also called interactant. Chemistry. any substance that undergoes a chemical change in a given reaction.
Words nearby reactant
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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
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British Dictionary definitions for reactant
reactant
/ (rɪˈæktənt) /
noun
a substance that participates in a chemical reaction, esp a substance that is present at the start of the reactionCompare product (def. 4)
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
Medical definitions for reactant
reactant
[ rē-ăk′tənt ]
n.
A substance participating in a chemical reaction, especially a directly reacting substance present at the start of the reaction.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Scientific definitions for reactant
reactant
[ rē-ăk′tənt ]
A substance participating in a chemical reaction, especially one present at the start of the reaction.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.