melena
noun
me·le·na
variants:
or chiefly British melaena \ mə-ˈlē-nə 
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Medical Definition of melena
: the passage of dark tarry stools containing decomposing blood that is usually an indication of bleeding in the upper part of the digestive tract and especially the esophagus, stomach, and duodenum — compare hematochezia
Other Words from melena
melenic
\ mə-ˈlē-nik
\
adjective
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adjective