• synonyms


[lahy-sawl, -sol]
  1. a brand of clear, brown, oily solution of cresols in soap, used as a disinfectant and antiseptic.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for lysol

Historical Examples

  • Wash off the lysol with ether and allow the latter to evaporate.

    The Elements of Bacteriological Technique

    John William Henry Eyre

  • Wash the lysol off with ether and allow the latter to evaporate.

  • Those I use are—Chloride of lime, peroxide of hydrogen, and lysol, 2%.

    Practical Skunk Raising

    William Edwin Pratt

  • The floor, the ceiling, and the walls were sprayed with kerosene and lysol solution.


    Thomas Wright Jackson

  • Glass rips and nozzles—to be boiled before and after using and kept in lysol solution.

British Dictionary definitions for lysol


  1. trademark a solution containing a mixture of cresols in water, used as an antiseptic and disinfectant
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for lysol


brown oily coal-tar solution used as a disinfectant, 1890, coined, perhaps in German, from Greek lysis "dissolution" (see lysis) + -ol, element indicating "oil."

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Online Etymology Dictionary, © 2010 Douglas Harper