per mille per mille [pə ˈmɪl ǁ pər-] also per mil. adjective, adverb
35/175 etc per mille equal to 35, 175 etc parts in every thousand:
• Foreign holidays are now deemed to account for 30 per mille (3 per cent) of the cost of living.
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per mille UK US (also per mil) adverb
► MEASURES for or out of every 1000, shown by the symbol ‰: »
Cost per mille (abbreviated as CPM) is a measurement used in advertising, estimating the cost per 1000 views of an advertisement.
Financial and business terms. 2012.