Melena definition

mə-lēnə
The passage of black, tarry stools composed largely of blood that has been acted on by gastric juices, indicative of bleeding in the upper digestive tract.
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The passage of black, tarry stools composed largely of blood that has been acted on by gastric juices, indicative of bleeding in the upper digestive tract.
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A passage of dark, tarry stools containing blood, as the result of upper gastrointestinal bleeding.
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Alternative Forms

Alternative Form of melena - melna, melaena

Origin of melena

  • New Latin melēna from Greek melaina feminine of melās black

    From American Heritage Dictionary of the English Language, 5th Edition