Dictionary.com

per mill

or per mil

[ pur -mil, per ]
/ ˌpɜr ˈmɪl, pər /

adverb

per thousand.

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Origin of per mill

First recorded in 1900–05

Words nearby per mill

per mensem, permethrin, Permian, Permic, permie, per mill, permillage, permissible, permission, permissive, permissivism
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for per mill

per mill

per mil

/ (pə ˈmɪl) /

adverb

by the thousand or in each thousand

Word Origin for per mill

C19: from per + French or Latin mille thousand, on the model of per cent
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