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operant

[op-er-uh nt] /ˈɒp ər ənt/
adjective
1.
operating; producing effects.
noun
2.
a person or thing that operates.
Origin
1595-1605
1595-1605; < Late Latin operant- (stem of operāns, present participle of operārī; see operate); see -ant
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for operant
  • Behavioral husbandry and operant conditioning allows us to keep the animals mentally exercised as well.
  • We were more interested in operant conditioning way back then.
  • Especially the feedback mechanisms operant during the ice ages which get initiated by subtle changes in our orbit.
British Dictionary definitions for operant

operant

/ˈɒpərənt/
adjective
1.
producing effects; operating
noun
2.
a person or thing that operates
3.
(psychol) any response by an organism that is not directly caused by a stimulus
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
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Word Origin and History for operant
adj.

"that works," early 15c., from Latin operantem (nominative operans), present participle of operari "to work" (see operation). Psychological sense of "involving behavior modification" coined 1937 by U.S. psychologist B.F. Skinner (e.g. operant conditioning, 1938, Skinner).

Online Etymology Dictionary, © 2010 Douglas Harper
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operant in Medicine

operant op·er·ant (ŏp'ər-ənt)
adj.

  1. Operating to produce effects; effective.

  2. Of, relating to, or being a response that occurs spontaneously and is identified by its reinforcing or inhibiting effects.

n.
In operant conditioning, a behavior or specific response chosen by the experimenter or therapist. Also called target response.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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