[ik-spek-ter-uhnt] Medicine/Medical, Pharmacology.
promoting the discharge of phlegm or other fluid from the respiratory tract.
an expectorant medicine.

1775–85; < Latin expectorant- (stem of expectorāns), present participle of expectorāre to expectorate; see -ant

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World English Dictionary
expectorant (ɪkˈspɛktərənt)
1.  promoting the secretion, liquefaction, or expulsion of sputum from the respiratory passages
2.  an expectorant drug or agent

Collins English Dictionary - Complete & Unabridged 10th Edition
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Word Origin & History

1782 (n.), 1811 (adj.), from L. expectorantem, prp. of expectorare (see expectorate).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

expectorant ex·pec·to·rant (ĭk-spěk'tər-ənt)
Promoting or facilitating the secretion or expulsion of phlegm, mucus, or other matter from the respiratory tract. n.
An expectorant medicine.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
expectorant   (ĭk-spěk'tər-ənt)  Pronunciation Key 
A drug that promotes the discharge of phlegm or mucus from the respiratory tract.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences for expectorant
They are antiinflammatory, astringent, expectorant and tonic.
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