vomit in WordNet English dictionary

1. the matter ejected in vomiting
   vomit  vomitus  puke  barf 
   
2. the reflex act of ejecting the contents of the stomach through the mouth
   vomit  vomiting  emesis  regurgitation  disgorgement  puking 
   
3. a medicine that induces nausea and vomiting
   emetic  vomit  vomitive  nauseant 
   

1. eject the contents of the stomach through the mouth
   "After drinking too much, the students vomited"; "He purged continuously"; "The patient regurgitated the food we gave him last night"
   vomit  vomit up  purge  cast  sick  cat  be sick  disgorge  regorge  retch  puke  barf  spew  spue  chuck  upchuck  honk  regurgitate  throw up