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Medical English, from New Latin, from Ancient Greek roots; by surface analysis, melan- + -aemia, "black blood" or "dark blood".
Etymology from Wiktionary, CC BY-SA 4.0.
melanaemia
Today it means: A morbid state in which the blood contains black pigment, either floating freely or embedded in the white blood cells; either a disease or a sign of one, ambiguously. Full definition →