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English definition of “soporific”

soporific

adjective     /ˌsɒp.ərˈɪf.ɪk/ US  /ˌsɑː.pəˈrɪf-/
causing sleep or making a person want to sleep: the soporific effect of the heatSleep and sleeping soporifically     /-ɪ.kəl.i/ adverb Sleep and sleeping
(Definition of soporific adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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