Fm

Fm
Fermium is a man-made element with an atomic number of 100.
FM
An abbreviation of Frequency Modulation where the information signal is used to vary the carrier signal frequency.
fm
Abbreviation of fathom.
fm
Abbreviation of femtometre, unit of length equal to 10-15m.
FMEA
A procedure by which each potential failure mode of a system is analyzed to determine the effects on the system and classify each potential failure mode according to its severity.