per mill


per mil

also per milladv. Per thousand.
[per + mil (short for Latin mīlle, thousand; see gheslo- in Indo-European roots).]

per mill

(pə ˈmɪl) or

per mil

advby the thousand or in each thousand[C19: from per + French or Latin mille thousand, on the model of per cent]

per mill

or per mil

(ˌpɜr ˈmɪl, pər)
adv. per thousand. [1900–05]