World English Dictionary
haematemesis or (US) hematemesis (ˌhiːməˈtɛmɪsɪs, ˌhɛm-, ˌhiːməˈtɛmɪsɪs, ˌhɛm-)
Compare haemoptysis vomiting of blood, esp as the result of a bleeding ulcer
[C19: from haemato- + Greek emesis vomiting]
hematemesis or (US) hematemesis
[C19: from haemato- + Greek emesis vomiting]

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

hematemesis he·ma·tem·e·sis (hē'mə-těm'ĭ-sĭs, hěm'ə-, hē'mə-tə-mē'sĭs)
The vomiting of blood.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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