expectorate

Verb

Synonyms: clear out drive out cough up cough out spit up spit out

WordNet 3.0

Verb (2)

clear out the chest and lungs“This drug expectorates quickly”Synonyms: clear out drive out
discharge (phlegm or sputum) from the lungs and out of the mouthSynonyms: cough up cough out spit up spit out

Webster's Dictionary (GCIDE)

Expectorate \Ex*pec"to*rate\, v. t. [imp. & p. p. Expectorated; p. pr. & vb. n. Expectorating.] [L. expecrorare to drive from the breast; ex out + pectus, pectiris, breast. See Pectoral.] To eject from the trachea or lungs; to discharge, as phlegm or other matter, by coughing, hawking, and spitting; to spit forth. [1913 Webster]

Expectorate \Ex*pec"to*rate\, v. i. To discharge matter from the lungs or throat by hawking and spitting; to spit. [1913 Webster]