资料来源 : pyDict

黑便; 黑粪; 黑粪症

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Melena \Me*le"na\, n. (Med.)
   See {Mel[ae]na}.

资料来源 : WordNet®

melena
     n : abnormally dark tarry feces containing blood (usually from
         gastrointestinal bleeding) [syn: {melaena}]