Pasteurised
/ˈpæs.tjʊə.raɪzd/noun
Heated to a specific temperature to kill harmful microorganisms and extend shelf life.
Did you know?The word comes from Louis Pasteur, whose work on microbes helped turn ordinary milk into a controlled, modern product—and his surname itself comes from French for a shepherd, not from the process.
Etymological Timeline
Latin
Latin
pastor
“shepherd”
Old French
French
pastur
“grazing land; pasture”
Middle French
French
Pasteur
“surname meaning shepherd”
19th Century
French
pasteuriser
“to heat and treat food or drink to reduce harmful microorganisms”
Modern English
English
pasteurise
“to subject to pasteurization”
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