PFM

Pulse-Frequency Modulation

PFM

Pre-Flight Message

Pfm

In Enochian, Pfm is a cacodemon.
Found on http://www.probertencyclopaedia.com/browse/DA.HTM

PFM

Printer Font Metrics, details ...
Found on http://www.cryer.co.uk/glossary/p/index.htm

PFM

Pre Flight Message
Found on http://www.tornado-data.com/siteinfo/glossary.htm

PFM

PDS File Manager
Found on http://www3.sympatico.ca/dhaughey/j1930.htm

PFM

(Printer Font Metrics) The metrics file for a PostScript font on the PC. The PFM contains spacing and kerning information that is required to use the font.
Found on http://www.fontshop.com/glossary/

PFM

Pure Fuckin Magic (U.S. Military)
Found on http://en.wikipedia.org/wiki/List_of_U.S._government_and_military_acronyms

pfm

Please forgive me
Found on http://www.noslang.com/dictionary/p/
No exact match found