reinforcement
noun
re·in·force·ment
ˌrē-ən-ˈfȯrs-mənt
1
: the action of strengthening or encouraging something : the state of being reinforced
2
: something that strengthens or encourages something: such as
a
: an addition of troops, supplies, etc., that augments the strength of an army or other military force
—usually plural
About 8 a.m. Soviet tanks and armored personnel carriers containing reinforcements approached the gorge from the right flank.—John Barron
b
: something designed to provide additional strength (as in a weak area)
a bridge in need of steel reinforcements
c
: a response to someone's behavior that is intended to make that person more likely to behave that way again
positive/negative reinforcement
3
psychology
: the action of causing a subject to learn to give or to increase the frequency of a desired response that in classical conditioning involves the repeated presentation of an unconditioned stimulus (such as the sight of food) paired with a conditioned stimulus (such as the sound of a bell) and that in operant conditioning involves the use of a reward following a correct response or a punishment following an incorrect response
also
: the reward, punishment, or unconditioned stimulus used in reinforcement
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Merriam-Webster unabridged
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