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English definition of “rarefied”

rarefied

adjective uk   /ˈreə.rɪ.faɪd/ us    /ˈrer.ə-/

rarefied adjective (LITTLE OXYGEN)

(of air) with little oxygen

rarefied adjective (NOT ORDINARY)

describes a place or situation that does not have any of the problems of ordinary life: the rarefied atmosphere/circles of college life
(Definition of rarefied from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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