vomit (http://definr.com/vomit)

     n 1: the matter ejected in vomiting [syn: vomitus, puke]
     2: a medicine that induces nausea and vomiting [syn: emetic,
        vomitive, nauseant]
     3: the reflex act of ejecting the contents of the stomach
        through the mouth [syn: vomiting, emesis, regurgitation,
         disgorgement, puking]
     v : eject the contents of the stomach through the mouth; "After
         drinking too much, the students vomited" [syn: vomit up,
          cast, sick, cat, regurgitate, be sick, disgorge,
          regorge, retch, puke, barf, spew, spue, chuck,
          upchuck, honk, throw up] [ant: keep down]