pernicious vomiting

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forcible ejection of contents of stomach through the mouth. Called also emesis and regurgitation.
cyclic vomiting recurring attacks of vomiting.
dry vomiting attempts at vomiting, with the ejection of nothing but gas.
pernicious vomiting (vomiting of pregnancy) hyperemesis gravidarum.
projectile vomiting vomiting with the material ejected with great force; seen commonly in congenital pyloric obstruction.
stercoraceous vomiting vomiting of fecal matter.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

per·ni·cious vom·it·ing

uncontrollable vomiting.
Farlex Partner Medical Dictionary © Farlex 2012

per·ni·cious vom·i·ting

(pĕr-nish'ŭs vom'it-ing)
Uncontrollable vomiting.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012