| hyperemesis | <clinical sign> Excessive vomiting. (18 Nov 1997) |
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| hyperemesis gravidarum | <obstetrics> A condition commonly seen in the first 12 weeks of pregnancy that is characterised by episodic vomiting, more pronounced in the morning. Thought to be secondary to a high level of human chorionic gonadotrophin in the bloodstream (which is normal in the first trimester). Synonym: morning sickness. (11 Jan 1998) |