Etymology
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pasteurize (v.)

"to perform pasteurization, sterilize by heat," 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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Definitions of pasteurize

pasteurize (v.)
heat food in order to kill harmful microorganisms;
pasteurize milk
Synonyms: pasteurise
From wordnet.princeton.edu