Definition of per mill in English:

per mill

Syllabification: per mill
(also per mil)


  • One part in every thousand.
    More example sentences
    • Isotopic concentrations were expressed as delta values in per mill.
    • He says the loss of sales per day for the industry is around 2 per day per mill.
    • According to the bylaw, the levy will be one per mill of the value of the animal.


late 17th century: Latin.

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day maelstrom
Pronunciation: ˈmeɪlstrəm
a powerful whirlpool in the sea