Guaifenesin Definition
gwī-fĕnə-sĭn
noun
An expectorant drug, C10 H14 O4 , that is used to thin mucus and sputum.
American Heritage Medicine
Origin of Guaifenesin
Alteration of guaiphenesin guai(acol) (me)phenesin a muscle relaxant drug (me(thyl)) (phen(yl)) ((an)es(thetic)) (–in)
From American Heritage Dictionary of the English Language, 5th Edition
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