operant

1 of 2

adjective

op·​er·​ant ˈä-pə-rənt How to pronounce operant (audio)
1
: functioning or tending to produce effects : effective
an operant conscience
2
: of or relating to the observable or measurable
3
: of, relating to, or being an operant or operant conditioning
operant behavior
operantly adverb

operant

2 of 2

noun

: behavior (such as bar pressing by a rat to obtain food) that operates on the environment to produce rewarding and reinforcing effects

Examples of operant in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Adjective
Researchers then had both groups compete against pain-free mice in a standard motivational test called a progressive ratio (PR) operant test, in which tasty treats become progressively harder to earn. Ben Thomas, Discover Magazine, 31 July 2014 The current study investigated domestic cat preferences at the individual and population level using a free operant preference assessment. Seriously Science, Discover Magazine, 3 Apr. 2017 Bradfield probably could have parlayed that success into some sort of cushy position with Burnett, but his operant mode was reinvention. Susan Orlean, The New Yorker, 18 Feb. 2022 As such, mobile games have developed into monsters psychologically tuned to rip thousands out of players vulnerable enough to be operant conditioned into a game addiction. Clem Chambers, Forbes, 8 Nov. 2021
Noun
Teams of female rats representing different colleges face off as part of the museum’s studies of operant and classical conditioning. Jordan Fisher Smith, Discover Magazine, 11 Nov. 2019

Word History

Etymology

Adjective

Middle English, borrowed from Late Latin operant-, operans, present participle of operārī "to work, be efficacious, effect, produce" — more at operate

Noun

derivative of operant entry 1

First Known Use

Adjective

15th century, in the meaning defined at sense 1

Noun

1937, in the meaning defined above

Time Traveler
The first known use of operant was in the 15th century

Dictionary Entries Near operant

Cite this Entry

“Operant.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/operant. Accessed 21 Nov. 2024.

Kids Definition

operant

adjective
op·​er·​ant
ˈäp-ə-rənt
: of, relating to, or being operant conditioning or behavior reinforced by operant conditioning

Medical Definition

operant

1 of 2 adjective
op·​er·​ant ˈäp-ə-rənt How to pronounce operant (audio)
: of, relating to, or being an operant or operant conditioning
operant behavior
compare respondent
operantly adverb

operant

2 of 2 noun
: behavior (as bar pressing by a rat to obtain food) that operates on the environment to produce rewarding and reinforcing effects

More from Merriam-Webster on operant

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!