Chem. Also leukol. [f. LEUCO- + -OL.] = next.

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1844.  Fownes, Chem., 537. Leukol has somewhat the odour of bitter almonds.

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c. 1855.  Letheby, in Circ. Sci., I. 116/1. There are evolved … aniline, leukol, picoline.

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