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expectorant

noun
/ɪkˈspektərənt/
/ɪkˈspektərənt/
(medical医学)
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  1. a cough medicine that helps you to get rid of phlegm (= a thick substance) from the lungs祛痰药
    Word Originmid 18th cent.: from Latin expectorant- ‘expelling from the chest’, from the verb expectorare, from ex- ‘out’ + pectus, pector- ‘breast’.

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