melena

from WordNet (r) 3.0 (2006)
melena
    n 1: abnormally dark tarry feces containing blood (usually from
         gastrointestinal bleeding) [syn: {melena}, {melaena}]
from The Collaborative International Dictionary of English v.0.48
Melena \Me*le"na\, n. (Med.)
   See {Melaena}.
   [1913 Webster]
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