Nearby Words

reactivity

[ree-ak-tiv-i-tee]

re·ac·tiv·i·ty

[ree-ak-tiv-i-tee]
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

hy·per·re·ac·tiv·i·ty, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Reactivity is always a great word to know.
So is conformation. Does it mean:
a solution containing the maximum amount of solute capable of being dissolved under given conditions
an atomic spatial arrangement that results from rotation of carbon atoms about single bonds within an organic molecule
Collins
World English Dictionary
reactive (rɪˈæktɪv)
 
adj
1.  readily partaking in chemical reactions: sodium is a reactive metal; free radicals are very reactive
2.  of, concerned with, or having a reactance
3.  responsive to stimulus
4.  (of mental illnesses) precipitated by an external cause: reactive depression
 
re'actively
 
adv
 
reactivity
 
n
 
re'activeness
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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American Heritage
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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