There are 2 main definitions of Sm in English:

Sm1

Line breaks: Sm

symbol

The chemical element samarium.

Definition of Sm in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

There are 2 main definitions of Sm in English:

SM2

Line breaks: SM

abbreviation

1 (also S & M) Sadomasochism.
1.1Sergeant Major.
1.2Short metre.

Definition of Sm in: