melaena
黑糞
me·lae·na /məˈlɪnə/ 名詞
黑糞症,黑吐症
Me·lae·na n. Med. A discharge from the bowels of black matter, consisting of altered blood.
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melaena
n : abnormally dark tarry feces containing blood (usually from
gastrointestinal bleeding) [syn: melena]