Simple Definition of stimulus
: something that causes something else to happen, develop, or become more active
: something that causes a change or a reaction
Full Definition of stimulusplural
stimuliplay \-ˌlī, -ˌlē\
Examples of stimulus in a sentence
The pay raise was a stimulus for production.
Heat and light are physical stimuli.
The dog responded to the stimulus of the ringing bell.
Origin and Etymology of stimulus
First Known Use: 1684
STIMULUS Defined for Kids
Definition of stimulus for Students
1 : something that stirs or urges to action <The reward was a stimulus for greater effort.>
2 : an influence that acts usually from outside the body to partly change bodily activity (as by exciting a receptor or sense organ) <Light, heat, and sound are common physical stimuli.>
Medical Definition of stimulus
stimuli\-ˌlī, -ˌlē\play play
1: stimulant 1
2: an agent (as an environmental change) that directly influences the activity of living protoplasm (as by exciting a sensory organ or evoking muscular contraction or glandular secretion) <a visual stimulus>
Seen and Heard
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