from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. a stimulus, associated with reinforcement, that exerts control over a particular form of behavior; the subject discriminates between closely related stimuli and responds positively only in the presence of that stimulus
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a stimulus that provides information about what to do
Sorry, no etymologies found.