Extern and Md

Extern noun - A nonresident doctor or medical student; connected with a hospital but not living there.

Md and extern are semantically related. In some cases you can use "Md" instead a noun "Extern".

Md noun - A radioactive transuranic element synthesized by bombarding einsteinium with alpha particles (Md is the current symbol for mendelevium but Mv was formerly the symbol).

Extern and Md are semantically related. Sometimes you can replace term "Extern" with "Md", this nouns are similar.