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Stimulus - Dictionary Definition and Overview |
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Stimulus : (noun)
1: any stimulating information or event; acts to arouse action
[syn: stimulation, stimulant, input]
Based on WordNet 2.0
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Stimulus : \Stim"u*lus\, n.; pl. Stimuli. [L., for stigmulus,
akin to L. instigare to stimulate. See Instigare, Stick,
v. t.]
1. A goad; hence, something that rouses the mind or spirits;
an incentive; as, the hope of gain is a powerful stimulus
to labor and action.
2. That which excites or produces a temporary increase of
vital action, either in the whole organism or in any of
its parts; especially (Physiol.), any substance or agent
capable of evoking the activity of a nerve or irritable
muscle, or capable of producing an impression upon a
sensory organ or more particularly upon its specific end
organ.
Note: Of the stimuli applied to the sensory apparatus,
physiologists distinguish two kinds: (a) Homologous
stimuli, which act only upon the end organ, and for
whose action the sense organs are especially adapted,
as the rods and cones of the retina for the vibrations
of the either. (b) Heterologous stimuli, which are
mechanical, chemical, electrical, etc., and act upon
the nervous elements of the sensory apparatus along
their entire course, producing, for example, the flash
of light beheld when the eye is struck. --Landois &
Stirling.
Based on WordNet (r) 2.0 (August 2003)
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Example Usage of Stimulus |
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apmuk: Stimulus flows to roads but bypasses buildings: Boston GlobeIndustry officials said work is so scarce that contract... http://bit.ly/66Fvf7 |
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BuzzjamBuzzjam: Education Week: Study: Schools Face Shortfalls After Stimulus Ends: Using federal Stimulus money to avoid layof.. http://bit.ly/5klkcI |
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mintoplus: IBM Financing Health Technology to Gain Based on Stimulus - Bloomberg http://twa.lk/BnLah |
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