'Nausea' definitions:

Definition of 'nausea'

From: WordNet
noun
The state that precedes vomiting [syn: nausea, sickness]
noun
Disgust so strong it makes you feel sick

Definition of 'Nausea'

From: GCIDE
  • Nausea \Nau"se*a\ (? or ?), n. [L., fr. Gr. ?, fr. nay^s ship. See Nave of a church, and cf. Noise.] Seasickness; hence, any similar sickness of the stomach accompanied with a propensity to vomit; qualm; squeamishness of the stomach; loathing. [1913 Webster]

Synonyms of 'nausea'

From: Moby Thesaurus