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- DictionaryStim·u·lus/ˈstimyələs/
noun
- 1. a thing or event that evokes a specific functional reaction in an organ or tissue: "areas of the brain which respond to auditory stimuli"
1. : something that rouses or stirs to action : incentive. 2. : something (as an environmental change) that acts to partly change bodily activity (as by exciting a sensory organ) heat, light, and sound are common physical stimuli.
Something that can elicit or evoke a physiological response in a cell, a tissue, or an organism. A stimulus can be internal or external. Sense organs, such as the ear, and sensory receptors, such as those in the skin, are sensitive to external stimuli such as sound and touch.
STIMULUS definition: 1. something that causes growth or activity: 2. something that causes part of the body to react…. Learn more.
A stimulus causes an action or response, like the ringing of your alarm clock if you didn't sleep through it. Stimulus is a word often used in biology — something that causes a reaction in an organ or cell, for example.
1. something that stimulates or acts as an incentive. 2. (Physiology) any drug, agent, electrical impulse, or other factor able to cause a response in an organism. 3. (Psychology) an object or event that is apprehended by the senses. 4. (Pharmacology) med a former name for stimulant.
STIMULUS meaning: 1. something that causes growth or activity: 2. something that causes part of the body to react…. Learn more.
1. something that rouses or incites to action or increased action; incentive. 2. Physiology and Psychology. any action or agent that causes or changes an activity in an organism, organ, or part, as something that excites an end organ, starts a nerve impulse, activates a muscle, etc.
something that produces a reaction in a human, an animal or a plant. The animals were conditioned to respond to auditory stimuli (= sounds). Definition of stimulus noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
Definition of stimulus noun in Oxford Advanced American Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
Influence or effect in calling forth some specific reaction of a tissue; irritation of a nerve or other sensitive structure. The force of contraction, or the vigour of muscular fibres, will be always as the force of stimulus, and the vigour of the animal, nervous, and inherent powers taken together.
