Nausea is a feeling as if you're about to vomit. Vomiting usually relieves this feeling. Nausea is not self-induced like vomiting sometimes is. Nausea is your body's response in saying "I don't like whats in my stomach."
by xxyuli August 23, 2006
A nasty feeling that usually leads to vomiting. This feeling sends an unusual taste through the mouth causing it to water and results in a look of disgust.
by *waterlover* March 04, 2009