expectorant
US /ɪkˈspek.tər.ənt/
UK /ɪkˈspek.tər.ənt/
1.
a medicine that helps a person to cough up phlegm from the lungs
:
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The doctor prescribed an expectorant to help clear his chest.
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Many cough syrups contain an expectorant.
1.
having the property of helping to cough up phlegm from the lungs
:
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Guaifenesin is an expectorant ingredient found in many over-the-counter cough medicines.
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Herbal teas can have an expectorant effect.