mr in English
- mr⇄mr(no period),
1. microroentgen.
2. milliroentgen. - MR⇄MR(no periods),
milliroentgen. - Mr⇄Mr. orMr, pl.Messrs.
mister, a title put in front of a man's name or the name of his position.
Ex. Mr. Jackson, Mr. Chairman, Mr. President.