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English definition of “phlegm”

phlegm

noun [U] uk   /flem/ us  

phlegm noun [U] (SUBSTANCE)

a thick substance in your nose and throat that is produced when you have a cold

phlegm noun [U] (CALMNESS)

formal the ability to stay calm and not get emotional or excited about things even in a difficult or dangerous situation
(Definition of phlegm from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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