The Collaborative International Dictionary of English v.0.48:
Pasteurize \Pas*teur"ize\, v. t. 1. To subject to pasteurization. [1913 Webster] 2. To treat by pasteurism. [1913 Webster]WordNet (r) 3.0 (2006):
pasteurize v 1: heat food in order to kill harmful microorganisms; "pasteurize milk" [syn: pasteurize, pasteurise]