dose Definition in the Cambridge English Dictionary
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Definition of “dose” - English Dictionary

Definition of "dose" - American English Dictionary

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dosenoun [C]

 us   /doʊs/
a ​measuredamount of a ​drug: She was given ​large doses of a ​powerfulantibiotic. A dose is also an ​amount of something: Stories of ​dramaticcancercures should be taken with a ​healthy dose of ​skepticism.
(Definition of dose from the Cambridge Academic Content Dictionary © Cambridge University Press)

Definition of "dose" - British English Dictionary

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dosenoun [C]

uk   /dəʊs/  us   /doʊs/
B2 a ​measuredamount of something such as ​medicine: a high/​low dose a dose ofpenicillin The ​label says to take one dose three ​times a ​day. 20 or 30 of these ​pills would be a lethal dose (= enough to ​kill you).B2 an ​amount or ​experience of something, often something ​bad or ​unpleasant: The ​governmentreceived a ​hefty dose ofbadnews this ​week.UK She's got a ​nasty dose offlu. UK slang a ​case of gonorrhoea (= a ​disease of the ​sexualorgans)
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doseverb [T]

uk   /dəʊs/  us   /doʊs/ UK
to give someone a ​measuredamount of ​medicine: informal He dosed himself (up) withvalium to ​calm his ​nerves.
(Definition of dose from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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