[ ree-ak-tiv ]
/ riˈæk tɪv /
tending to react.
pertaining to or characterized by reaction.
Electricity. pertaining to or characterized by reactance.
Words nearby reactive
OTHER WORDS FROM reactive
re·ac·tive·ly, adverbre·ac·tive·ness, nounan·ti·re·ac·tive, adjectivehy·per·re·ac·tive, adjective
non·re·ac·tive, adjectiveo·ver·re·ac·tive, adjectiveun·re·ac·tive, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for reactiveness
/ (rɪˈæktɪv) /
readily partaking in chemical reactionssodium is a reactive metal; free radicals are very reactive
of, concerned with, or having a reactance
responsive to stimulus
(of mental illnesses) precipitated by an external causereactive depression
Derived forms of reactivereactively, adverbreactivity (ˌriːækˈtɪvɪtɪ) or reactiveness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Medical definitions for reactiveness
[ rē-ăk′tĭv ]
Tending to be responsive or to react to a stimulus.
Characterized by reaction.
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.