nausea

n. queasiness, uneasiness of the stomach; revulsion, repugnance, disgust

Nausea (Latin: Nausea, Greek: , "sea-sickness") is the sensation of unease and discomfort in the stomach with an urge to vomit.
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Nausea /nau·sea/ an unpleasant sensation vaguely referred to the epigastrium and abdomen, with a tendency to vomit. [more]Nausea - Community and Resources

Noun
1. the state that precedes vomiting
(synonym) sickness
(hypernym) symptom
(hyponym) motion sickness, kinetosis
(derivation) sicken, nauseate, turn one's stomach
2. disgust so strong it makes you feel sick
(hypernym) disgust
(derivation) sicken, nauseate, turn one's stomach

n. nausea, queasiness, sickness, qualm, disgust, revulsion

v. make sick, feel sick, nauseate, disgust, sicken