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English definition of “stimulant”

stimulant

noun [C]     /ˈstɪm.jʊ.lənt/
something that makes or causes something else to grow or develop: Tourism has acted as a stimulant to the country's economy.Causing things to happen a substance, such as a drug, which makes the mind or body more active: Caffeine, which is found in coffee and tea, is a mild stimulant.Specific types of drugDrugs - general wordsSpecific medicines and drugs
(Definition of stimulant noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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