Look up stimulus in Wiktionary, the free dictionary.
A stimulus is something that causes a physiological response. It may refer to:
- Stimulation
- Stimulus (physiology), something external that influences an activity
- Stimulus (psychology), a concept in behaviorism and perception
- Stimulus (economics)
- For government spending as stimulus, see Fiscal policy
- For an increase in money designed to speed growth, see Monetary policy
- The input to an input/output system, especially in computers