S.M.

1. Master of Science. [ < NL Scientiae Magister]

2. sergeant major.

3. State Militia.

* * *

sm.,

small.

Sm (no period),

samarium (chemical element).

SM (no periods),

1. service module.

2. speed midget (flashbulb).

S.M.,

an abbreviation for the following:

1. Master of Science (Latin, Scientiae Magister).

2. Saint Mary.

3. Sergeant Major.

4. Soldier's Medal.

5. State Militia.

S-M or s-m (no periods),

sadomasochism or sadomasochistic: »

S-M fiction brings the reader out of his down by making a spectacle of his own cruelty and vulnerability (Harper's).