Definition of mil
- found a salinity of 38.4 per mil
First Known Use: 1872See Words from the same year
First Known Use: circa 1942See Words from the same year
What made you want to look up mil? Please tell us where you read or heard it (including the quote, if possible).
Merriam-Webster's New Words Quiz—Fall 2017 Edition!
Test your knowledge - and maybe learn something along the way.TAKE THE QUIZ
Test Your Knowledge - and learn some interesting things along the way.TAKE THE QUIZ