Fm

prop. n.	1.	the symbol for the element Fermium.
n.	1.	A method of transmitting radio signals by modulating the frequency of the carrier wave; - opposed to AM (amplitude modulation), in which the signal modulates the amplitude, rather than the frequency of the carrier wave.
prop. n.	1.	The chemical symbol for Fermium, a transuranic element.

Noun	1.	FM - modulation of the frequency of the (radio) carrier wave Synonyms: frequency modulation
	2.	Fm - a radioactive transuranic metallic element produced by bombarding plutonium with neutrons Synonyms: atomic number 100, fermium

1.	(communications)	FM - Frequency Modulation.
2.	(jargon)	FM - Fucking Manual, a back-formation from RTFM. Used to refer to the manual itself.
3.	(jargon)	FM - Fucking Magic, in the sense of black magic.
4.	(networking)	fm - The country code for the Federated States of Micronesia. Heavily used for vanity domains by FM radio stations.