or chiefly Brit  me*lae*na  n :  the passage of dark tarry stools containing decomposing blood that is usu. an indication of bleeding in the upper part of the alimentary canal and esp. the esophagus, stomach, and duodenum - compare HEMATOCHEZIA  .
 
 
 
Similar sounding terms:  mal·le·in  melaena  Me·la·nia  me·la·no 
 
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