reactant
[ree-ak-tuh nt]
- a person or thing that reacts.
- Also called interactant. Chemistry. any substance that undergoes a chemical change in a given reaction.
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Origin of reactant
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for reactant
Historical Examples
No matter what distance or reactant I assume, nothing we know will fit.
Masters of SpaceEdward Elmer Smith
"She's been stripped of her reactant pile, Major," said Strong.
The Revolt on VenusCarey Rockwell
What kind of reactant is Quent Miles using in that ship of yours?
Treachery in Outer SpaceCarey Rockwell and Louis Glanzman
"Reactant feeding at D-9 rate," said Barret after a split-second pause.
Sabotage in SpaceCarey Rockwell
I don't know who's going to be first, but I can't even strip my ship by tomorrow morning, let alone soup up the reactant.
Treachery in Outer SpaceCarey Rockwell and Louis Glanzman
reactant
- a substance that participates in a chemical reaction, esp a substance that is present at the start of the reactionCompare product (def. 4)
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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
Word Origin and History for reactant
Online Etymology Dictionary, © 2010 Douglas Harper
reactant
(rē-ăk′tənt)- A substance participating in a chemical reaction, especially a directly reacting substance present at the start of the reaction.
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The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
reactant
[rē-ăk′tənt]
- A substance participating in a chemical reaction, especially one present at the start of the reaction.
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The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.