reactant

Dictionary: re·ac·tant (rē-ăk'tənt) pronunciation

A substance participating in a chemical reaction, especially a directly reacting substance present at the initiation of the reaction.

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Medical Dictionary: re·ac·tant

(rē-ăk'tənt)
n.

A substance participating in a chemical reaction, especially a directly reacting substance present at the start of the reaction.

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A substance which takes part in a reaction and is altered by it.

WordNet: reactant

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Note: click on a word meaning below to see its connections and related words.

The noun has one meaning:

Meaning #1: a chemical substance that is present at the start of a chemical reaction

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	stoichiometric mixture
	narcissistic reaction (chemistry)
	steric hindrance

	When an atom ion or molecule of a reactant switches places with an unpaired reactant the type of reaction is called? Read answer...
	Distinguish between limiting reactant and excess reactant in a chemical reaction? Read answer...
	What is A reactant in which energy is taken in? Read answer...

Help us answer these

	For each of the following precipitation reactions calculate how many grams of the first reactant are necessary to completely react with 56.5 g of the second reactant?
	If 115 g of methane CH4 is mixed with 200 g of o2 and the mixture is ignitedwhich reactant is the limiting reactant?
	What are the order of a reactions with respect to each reactant by observing how changing the concentration of each reactant affects the rate of the reaction?

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		Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2007. Published by Houghton Mifflin Company. All rights reserved. Read more
		Medical Dictionary. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Read more
		Veterinary Dictionary. Saunders Comprehensive Veterinary Dictionary 3rd Edition. Copyright © 2007 by D.C. Blood, V.P. Studdert and C.C. Gay, Elsevier. All rights reserved. Read more
		WordNet. WordNet 1.7.1 Copyright © 2001 by Princeton University. All rights reserved. Read more