[kee-moh-proh-fuh-lak-sis, -prof-uh-, kem-oh-]

Origin of chemoprophylaxis

First recorded in 1935–40; chemo- + prophylaxis
Also called che·mo·pre·ven·tion [kee-moh-pri-ven-shuh n] /ˌki moʊ prɪˈvɛn ʃən/.
Related formsche·mo·pro·phy·lac·tic [kee-moh-proh-fuh-lak-tik, kem-oh-] /ˌki moʊˌproʊ fəˈlæk tɪk, ˌkɛm oʊ-/, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for chemoprevention

Contemporary Examples of chemoprevention

  • I could have opted for chemoprevention, taken estrogen blockers for a few years.

    The Daily Beast logo
    Goodbye to My Breasts

    Lizzie Stark

    April 24, 2010

British Dictionary definitions for chemoprevention


  1. the prevention of disease using chemical drugs
Derived Formschemoprophylactic, adjective
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

chemoprevention in Medicine


  1. The use of chemical agents, drugs, or food supplements to prevent disease.


  1. Disease prevention by use of chemicals or drugs.
Related formsche′mo•pro′phy•lactic (-lăktĭk) n. adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.