leukotaxine
noun
leu·ko·tax·ine
variants:
or chiefly British leucotaxine \ ˌlü-kə-ˈtak-ˌsēn, -sən 
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Medical Definition of leukotaxine
: a crystalline polypeptide that is obtained from the fluid at sites of inflammation in the body and that increases the permeability of capillaries and migration of white blood cells