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English definition of “antiseptic”

antiseptic

noun [C or U]     /ˌæn.tiˈsep.tɪk/ US  /-t̬i-/
a chemical used for preventing infection in an injury , especially by killing bacteria : Antiseptic is used to sterilize the skin before giving an injection . Many of the ingredients for antiseptics come from the rainforests .Preventing infection
(Definition of antiseptic noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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