forcing out,
ejection,
expulsion,
projection the act of forcing out someone or something; "the ejection of troublemakers by the police"; "the child's expulsion from school"
rumination regurgitation of small amounts of food; seen in some infants after feeding
ipecac a medicinal drug used to evoke vomiting (especially in cases of drug overdose or poisoning)
Verb
vomit -
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"