Found 2 items, similar to melaena.
English → English (WordNet) Definition: melaena melaena n : abnormally dark tarry feces containing blood (usually from gastrointestinal bleeding) [syn: melena]
English → English (gcide) Definition: Melaena Melaena \Me*l[ae]"na\, n. [NL., fr. Gr. me`las, m., me`laina, f., black.] (Med.) A discharge from the bowels of black matter, consisting of altered blood. [1913 Webster]