British variant of aleucaemic; relating to a form of leukemia without increased white blood cell count in the peripheral blood.
A- (without) + leuk- (white, from Greek leukos) + -aemic (blood-related, British spelling). The 'k' form varies from 'c' spelling in different medical traditions.
The leuko/leuc spelling split shows how medical terminology absorbed Greek differently across English-speaking regions—the 'k' is closer to Greek, but conventions solidified differently, making both spellings medically correct depending on your region.
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