Dr. I. M. Smart.
M. monsieur (singular) is abbreviated: m. (no 'r') messieurs (plural) is abbreviated: mm.
Doctor: Dr.
The abbreviation for juris doctor is JD.
M refers to the modulus of the slope.
M means medium width, as opposed to wide (abbreviated "W") or narrow (abbreviated "B").
Here are some common prefixes commonly used with the metric system: 1000: kilo, abbreviated k 1,000,000: mega, abbreviated M (uppercase M, to avoid confusion with "milli") 1/1000: milli, abbreviated m (lowercase m) 1/1,000,000: micro, abbreviated µ (or "u" if µ isn't available)
meter
meter
It depends on what medical degree was earned. A medical physician can have a Doctor of Osteopathic Medicine degree, which would be abbreviated D.O., a Doctor of Medicine degree abbreviated as M.D., or a Bachelor of Medicine/Bachelor of Surgery degree abbreviated as MBBS/MBChB.
Very smart
Dr. is abbreviated for Doctor. This means a religious leader or a nurse, vet, or doctor!