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n. Alternative spelling of melena.

n. A discharge from the bowels of black matter, consisting of altered blood.

n. Black vomit: a term adopted by Sauvages to denote the occurrence of dark-colored, grumous, and pitchy evacuations, generally accompanied by vomiting of black-colored bloody matter. The black vomit in yellow fever is a morbid secretion mixed with blood from the lining membrane of the stomach and small intestines.

n. The discharge from the anus of dark, tarry, and altered blood, the result of intestinal hemorrhage.

n. abnormally dark tarry feces containing blood (usually from gastrointestinal bleeding)

"The petechiae may give way to ecchymoses (like a petechial rash, but covering larger areas) and other haemorrhagic phenomena such as melaena (bleeding from the upper bowel, passed as altered blood in the faeces), haematuria (blood in the urine), epistaxis"

faecal matter    faeces    BM    stool    dejection