reinforcer

noun

re·​in·​forc·​er ˌrē-ən-ˈfȯr-sər 

: a stimulus (such as a reward or the removal of an electric shock) that increases the probability of a desired response in operant conditioning by being applied or effected following the desired response

Examples of reinforcer in a Sentence

Recent Examples on the Web

Because people compulsively eat huge quantities of food, but the food is a natural reinforcer. —Adam Piore, Discover Magazine, 30 Oct. 2014

The present experiment was designed to assess whether paramecium could learn a discrete action as opposed to remaining in a specific area, using cathode shock as a reinforcer. —Ncbi Rofl, Discover Magazine, 29 Mar. 2011

It was used as a reinforcer to help him do classwork. —Rafael Olmeda, Sun Sentinel, 22 Aug. 2022

Together, this suggests that relief from distressing emotion acts as a powerful reinforcer, likely increasing the probability that people continue to experience self-injurious thoughts and behaviors. —Kevin King, The Conversation, 28 Apr. 2022

Word History

First Known Use

1890, in the meaning defined above

Kids Definition

reinforcer

noun

re·​in·​forc·​er ˌrē-ən-ˈfōr-sər 

-ˈfȯr-

1

: one that reinforces

2

: a stimulus (as a reward or the removal of something unpleasant) given after a desired action or reply that helps to make the individual act or reply in the same way when the conditions are repeated

Medical Definition

reinforcer

noun

re·​in·​forc·​er -ˈfōr-sər, -ˈfȯr- 

: a stimulus (as a reward or removal of an electric shock) that increases the probability of a desired response in operant conditioning by being applied or removed following the desired response