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reactive

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re⋅ac⋅tive

  [ree-ak-tiv]
Use reactive in a Sentence
–adjective
1. tending to react.
2. pertaining to or characterized by reaction.
3. Electricity. pertaining to or characterized by reactance.
Origin:
1705–15; react + -ive

Related forms:
re⋅ac⋅tive⋅ly, adverb
re⋅ac⋅tive⋅ness, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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re·ac·tive   (rē-āk'tĭv)   
adj.  

  1. Tending to be responsive or to react to a stimulus.

  2. Characterized by reaction.

  3. Chemistry & Physics Tending to participate readily in reactions.

re·ac'tive·ly adv., re·ac'tive·ness, re'ac·tiv'i·ty n.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: re·ac·tive
Pronunciation: rE-'ak-tiv
Function: adjective
1 a : of, relating to, or marked by reaction <reactivesymptoms> reactive process> b : capable of reacting chemically reactive materials>
2 a : readily responsive to a stimulusreactive than that of younger persons —Louis Tuft> b : occurring as a result of stress or emotional upset especially from factorsoutside the organism <reactive depression>
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

reactive re·ac·tive (rē-āk'tĭv)
adj.

  1. Tending to be responsive or to react to a stimulus.

  2. Characterized by reaction.

  3. Tending to participate readily in chemical reactions.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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