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reactive

play
adjective re·ac·tive \rē-ˈak-tiv\

Simple Definition of reactive

  • : done in response to a problem or situation : reacting to problems when they occur instead of doing something to prevent them

  • chemistry : tending to change into something else when mixed with another substance

Source: Merriam-Webster's Learner's Dictionary

Full Definition of reactive

  1. 1 :  of, relating to, or marked by reaction or reactance

  2. 2 a :  readily responsive to a stimulus b :  occurring as a result of stress or emotional upset <reactive depression>

reactively adverb
reactiveness noun
reactivity play \(ˌ)rē-ˌak-ˈti-və-tē\ noun

Examples of reactive in a sentence

  1. The government's response to the problem was reactive rather than proactive.



1794

First Known Use of reactive

1794

Other Chemical Engineering Terms


Medical Dictionary

reactive

play
adjective re·ac·tive \rē-ˈak-tiv\

Medical Definition of reactive

  1. 1a:  of, relating to, or marked by reaction <reactive symptoms> <a reactive process>b:  capable of reacting chemically <highly reactive materials>

  2. 2a:  readily responsive to a stimulus <the skin of the geriatric is less reactive than that of younger persons—Louis Tuft>b:  occurring as a result of stress or emotional upset especially from factors outside the organism <reactive depression>




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