Main Page | See live article | Alphabetical index PEF may stand for: Palestine Exploration Fund (pef.org.uk) Peak expiratory flow Pentecostal European Fellowship (pef.net) Preferred Executable Format (Mac OS) Presidential Emergency Facility (US) Public Employees Federation (New York, pef.org) Pulsed electric field This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.