stimulus

play
noun stim·u·lus \ˈstim-yə-ləs\

Definition of stimulus

plural

stimuli

play \-ˌlī, -ˌlē\
  1. :  something that rouses or incites to activity: such asa :  incentiveb :  stimulant 1c :  an agent (such as an environmental change) that directly influences the activity of a living organism or one of its parts (as by exciting a sensory organ or evoking muscular contraction or glandular secretion)

Examples of stimulus in a Sentence

  1. The pay raise was a stimulus for production.

  2. Heat and light are physical stimuli.

  3. The dog responded to the stimulus of the ringing bell.

Recent Examples of stimulus from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'stimulus'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of stimulus

Latin


First Known Use: 1684


STIMULUS Defined for English Language Learners

stimulus

play
noun

Definition of stimulus for English Language Learners

  • : something that causes something else to happen, develop, or become more active

  • : something that causes a change or a reaction


STIMULUS Defined for Kids

stimulus

play
noun stim·u·lus \ˈsti-myə-ləs\

Definition of stimulus for Students

plural

stimuli

\-ˌlī, -ˌlē\
  1. 1 :  something that stirs or urges to action The reward was a stimulus for greater effort.

  2. 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 Dictionary

stimulus

play
noun stim·u·lus \ˈstim-yə-ləs\

Medical Definition of stimulus

plural

stimuli

\-ˌlī, -ˌlē\play play
  1. 1:  stimulant 1

  2. 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



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