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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·ness, re′ac·tiv′i·ty n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
1. (Chemistry) readily partaking in chemical reactions: sodium is a reactive metal; free radicals are very reactive.
2. (General Physics) of, concerned with, or having a reactance
3. (Electronics) of, concerned with, or having a reactance
4. responsive to stimulus
5. (Psychiatry) (of mental illnesses) precipitated by an external cause: reactive depression.
reactivity, reˈactiveness n
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
1. tending to react.
2. pertaining to or characterized by reaction.
3. pertaining to or characterized by reactance.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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|Adj.||1.||reactive - participating readily in reactions; "sodium is a reactive metal"; "free radicals are very reactive"|
chemical science, chemistry - the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions
natural philosophy, physics - the science of matter and energy and their interactions; "his favorite subject was physics"
unreactive - (chemistry) not reacting chemically
|2.||reactive - reacting to a stimulus; "the skin of old persons is less reactive than that of younger persons"|
sensitive - responsive to physical stimuli; "a mimosa's leaves are sensitive to touch"; "a sensitive voltmeter"; "sensitive skin"; "sensitive to light"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
adjective apathetic, passive, laissez-faire, inactive, submissive, uninvolved, unassertive, non-participating I want our organization to be less reactive and more pro-active.
Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. 2002 © HarperCollins Publishers 1995, 2002
reactive[riːˈæktɪv] ADJ → reactivo
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005
adj (Chem, Phys) → reaktiv
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007
reactive[riːˈæktɪv] adj → reattivo/a
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995
a. reactivo-a, que tiene la propiedad de reaccionar o de causar una reacción.
English-Spanish Medical Dictionary © Farlex 2012
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.