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Related to black vomit: yellow fever
1. Dark vomit consisting of digested blood and gastric contents.
2. Severe yellow fever with symptomatic regurgitation of dark vomited matter.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
1. (Pathology) vomit containing blood, often a manifestation of disease, such as yellow fever
2. (Pathology) informal yellow fever
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014