American Heritage Dictionary
(2)
Century Dictionary
(2)
GNU Webster's 1913
(1)
WordNet
(1)
Elsewhere on the web
Leaf concoctions have been used as an expectorant, emetic and cathartic.— Find Me A Cure
If it is an expectorant, why on earth isn't it in Benylin Chesty Coughs as well?— NHS Blog Doctor
However, a simple expectorant mixture may serve a useful function and has the advantage of being inexpensive.— NHS Blog Doctor
In addition to increasing the amount water you drink you might also want to try an expectorant like Mucinex (Guaifenicen).
The whole plant is antispasmodic, diuretic, emetic, expectorant and tonic.— Find Me A Cure

Century Dictionary (1)
Bubble size: how much this word was used in a year
Bubble height: used more or less than expected, vs. all uses evenly distributed
You can expect to see this word about once a year.