blackwater fever

blackwater fever

noun Pathology.
a severe form of malaria characterized by kidney damage and hemoglobinuria resulting in urine that is dark red or black.

Origin:
1880–85

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Collins
World English Dictionary
blackwater fever
 
n
med a rare and serious complication of malaria, characterized by massive destruction of red blood cells, producing dark red or blackish urine

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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American Heritage
Medical Dictionary

blackwater fever black·wa·ter fever (blāk'wô'tər)
n.
A serious, often fatal complication of falciparum malaria, characterized by the passage of bloody, dark red, or black urine.

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

blackwater fever

one of the less common yet most dangerous complications of malaria. It occurs almost exclusively with infection from the parasite Plasmodium falciparum. Blackwater fever has a high mortality. Its symptoms include a rapid pulse, high fever and chills, extreme prostration, a rapidly developing anemia, and the passage of urine that is black or dark red in colour (hence the disease's name). The distinctive colour of the urine is due to the presence of large amounts of hemoglobin, released during the extensive destruction of the patient's red blood cells by malarial parasites. Patients frequently develop anemia because of the low numbers of red blood cells. The presence of blood pigments in the blood serum usually produces jaundice early in the course of the disease.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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