Source : Webster's Revised Unabridged Dictionary (1913)

Expectoration \Ex*pec`to*ra"tion\, n. [Cf. F. expectoration.]
   1. The act of ejecting phlegm or mucus from the throat or
      lungs, by coughing, hawking, and spitting.

   2. That which is expectorated, as phlegm or mucus.

Source : WordNet®

expectoration
     n 1: the process of coughing up and spitting out
     2: the act of spitting (forcefully expelling saliva) [syn: {spit},
         {spitting}]