• synonyms


[pas-chuh-rahyz, pas-tuh-]
See more synonyms for pasteurize on Thesaurus.com
verb (used with object), pas·teur·ized, pas·teur·iz·ing.
  1. to expose (a food, as milk, cheese, yogurt, beer, or wine) to an elevated temperature for a period of time sufficient to destroy certain microorganisms, as those that can produce disease or cause spoilage or undesirable fermentation of food, without radically altering taste or quality.
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Also especially British, pas·teur·ise.

Origin of pasteurize

First recorded in 1880–85; Pasteur + -ize
Related formspas·teur·i·za·tion, nounsu·per·pas·teur·ized, adjectiveul·tra·pas·teur·ized, adjectiveun·pas·teur·ized, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for pasteurize

decontaminate, neuter, disinfect, spay, sanitize, castrate, pasteurize, emasculate, fix, purify, incapacitate, clean, fumigate, alter, change, autoclave, desexualize, antisepticize, unsex, geld

Examples from the Web for pasteurize

Historical Examples of pasteurize

  • Parents in small towns and in the country should be taught to pasteurize all milk.

    Civics and Health

    William H. Allen

  • It gets into their young intestines, God bless 'em, and makes you pasteurize all they eat.

    His Family

    Ernest Poole

  • To pasteurize milk in the home, proceed in the manner illustrated in Fig. 3.

    Woman's Institute Library of Cookery, Vol. 2

    Woman's Institute of Domestic Arts and Sciences

  • Unless the milk is perfectly fresh, and has been handled with great care, it is safer to sterilize or pasteurize it.

  • To pasteurize milk we heat it to a temperature of not over 170 Fahrenheit for from ten minutes to half an hour.

    A Civic Biology

    George William Hunter

British Dictionary definitions for pasteurize



verb (tr)
  1. to subject (milk, beer, etc) to pasteurization
  2. rare to subject (a patient) to pasteurism
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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 pasteurize


1881, with -ize, after Louis Pasteur (1822-1895), French chemist and bacteriologist, who invented the process of heating food, milk, wine, etc., to kill most of the micro-organisms in it; distinguished from sterilization, which involves killing all of them. The surname is literally "Pastor." Related: Pasteurized; pasteurizing.

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Online Etymology Dictionary, © 2010 Douglas Harper

pasteurize in Medicine


(păschə-rīz′, păstə-)
  1. To treat by pasteurization.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.