Also found in: Dictionary, Thesaurus, Encyclopedia.
me·le·na(me-lē'nă), Although the correct pronunciation of this word is as noted, the more usual U.S. pronunciation is mel'ena.
Passage of dark-colored, tarry stools, due to the presence of blood altered by the intestinal juices. Compare: hematochezia.
[G. melaina, fem. of melas, black]
melanorrhagia(1) Haematochezia, see there.
(2) Melena, see there.