f.m.

(in prescriptions) make a mixture.

[ < L fiat mistura]

* * *

fm.,

1. fathom.

2. from.

Fm (no period),

fermium (chemical element).

FM (no periods),

1. field manual (of the U.S. Army).

2. frequency modulation.

F.M.,

1. field manual (of the U.S. Army).

2. field marshal.

3. frequency modulation.