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  1. STIMULUS Definition & Meaning - Merriam-Webster

    The meaning of STIMULUS is something that rouses or incites to activity. How to use stimulus in a sentence.

  2. Stimulus - Definition and Examples - Biology Online Dictionary

    Mar 28, 2024 · Stimulus Definition What is a stimulus? In biology, we can define stimulus as the “detectable change (physical or chemical) in the environment of an organism that results in …

  3. STIMULUS | English meaning - Cambridge Dictionary

    STIMULUS definition: 1. something that causes growth or activity: 2. something that causes part of the body to react….

  4. STIMULUS Definition & Meaning | Dictionary.com

    In general, a stimulus is something that provokes or causes an action or response, as in Failing that test was the stimulus I needed to start studying harder. The plural of stimulus is stimuli.

  5. What Is a Stimulus? The Scientific Definition & Examples

    Aug 26, 2025 · A stimulus is any detectable change in an organism’s internal or external environment that can elicit a response. These changes are perceived by specialized sensory …

  6. stimulus noun - Definition, pictures, pronunciation and usage …

    Definition of stimulus noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

  7. STIMULUS | definition in the Cambridge English Dictionary

    STIMULUS meaning: 1. something that causes growth or activity: 2. something that causes part of the body to react…. Learn more.

  8. Stimulus payment December 2025, IRS direct deposit relief …

    Dec 1, 2025 · No new stimulus checks are approved, and the IRS has not confirmed December payments. The last official relief was $1,400 credits tied to 2021 returns, with deadlines now …

  9. Stimulus - definition of stimulus by The Free Dictionary

    Something causing or regarded as causing a response. 2. An agent, action, or condition that elicits or accelerates a physiological or psychological activity or response. 3. a. Something that …

  10. stimulus - Wiktionary, the free dictionary

    2 days ago · stimulus (plural stimuluses or stimuli) An external phenomenon that has an influence on a system, by triggering or modifying an internal phenomenon; for example, a spur or …