vomit

American Heritage® Dictionary of the English Language, Fourth Edition

1. v. To eject part or all of the contents of the stomach through the mouth, usually in a series of involuntary spasmic movements.
2. v. To be discharged forcefully and abundantly; spew or gush: The dike burst, and the floodwaters vomited forth.
3. v. To eject (contents of the stomach) through the mouth.
4. v. To eject or discharge in a gush; spew out: The volcano vomited lava and ash.
5. n. The act or an instance of ejecting matter from the stomach through the mouth.
6. n. Matter ejected from the stomach through the mouth.
7. n. An emetic.

Century Dictionary and Cyclopedia

1. To throw up or eject from the stomach; discharge from the stomach through the mouth: often followed by forth, up, or out.
2. To eject with violence from any hollow place; belch forth; emit.
3. To eject the contents of the stomach by the mouth; puke; spew.
4. To be emitted; come out with force or violence.
5. n. That which is vomited; specifically, matter ejected from the stomach in the act of vomiting; an attack of vomiting.
6. n. That which excites the stomach to discharge its contents; an emetic.

Wiktionary

1. v. To regurgitate the contents of a stomach.
2. n. The regurgitated former contents of a stomach.
3. n. The act of regurgitating.

GNU Webster's 1913

1. v. To eject the contents of the stomach by the mouth; to puke; to spew.
2. v. To throw up; to eject from the stomach through the mouth; to disgorge; to puke; to spew out; -- often followed by up or out.
3. v. Hence, to eject from any hollow place; to belch forth; to emit; to throw forth.
4. n. Matter that is vomited; esp., matter ejected from the stomach through the mouth.
5. n. That which excites vomiting; an emetic.

WordNet 3.0

1. n. the reflex act of ejecting the contents of the stomach through the mouth
2. v. eject the contents of the stomach through the mouth
3. n. a medicine that induces nausea and vomiting
4. n. the matter ejected in vomiting