[f. Gr. λύσ-ις a loosening + -OL 3.] A solution of coal-tar oil in soap.

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1891.  Brit. Med. Jrnl., 12 Sept., 598/1. Lysol differs from creoline … by its most perfect solubility in … water.

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1898.  P. Manson, Trop. Diseases, viii. 163. [Of plague disinfectants] the best … are … lysol … and carbolic acid.

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