leukemogen

Any substance or entity ( e.g., benzene, ionizing radiation) considered to be a causal factor in the occurrence of leukemia.

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leu·ke·mo·gen or chiefly Brit leu·kae·mo·gen lü-'kē-mə-jən, -.jen n a substance tending to induce the development of leukemia

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leu·ke·mo·gen (loo-keґmo-jən) any substance that causes or produces leukemia.