Wordnet 3.0
NOUN (1)
1.
conditioning in which an operant response is brought under stimulus control by virtue of presenting reinforcement contingent upon the occurrence of the operant response;
The Collaborative International Dictionary of English v.0.48:
operant conditioning \op"er*ant con*di"tion*ing\, n. (Psychol.)
A process for causing animals to behave in a specific manner
by rewarding or punishing the animal each time it performs a
certain act; after a time, the animal comes to associate the
reward or punishment with the act, and will increase or
decrease the frequency of performing that act.
[PJC]
WordNet (r) 3.0 (2006):
operant conditioning
n 1: conditioning in which an operant response is brought under
stimulus control by virtue of presenting reinforcement
contingent upon the occurrence of the operant response