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reactivity

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re⋅ac⋅tiv⋅i⋅ty

  [ree-ak-tiv-i-tee]
Use reactivity in a Sentence
–noun
1. the quality or condition of being reactive.
2. Chemistry. the relative capacity of an atom, molecule, or radical to undergo a chemical reaction with another atom, molecule, or compound.
3. Physics. a measure of the deviation from the condition at which a nuclear reactor is critical.
4. Immunology. the ability of an antigen to combine with an antibody.
Origin:
1885–90; reactive + -ity
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·tiv·i·ty
Pronunciation: (")rE-"ak-'tiv-&t-E
Function: noun
Inflected Form: plural -ties
: the quality or state of being reactive reactivity> reactivity>
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

reactivity re·ac·tiv·i·ty (rē'āk-tĭv'ĭ-tē)
n.

  1. The property of reacting.

  2. The process of reacting.

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