The meaning of the Acronym DEF is...

DEF is

• Development and Evaluation Facility
• Defense

More Meanings For DEF:

• Defend
• Defile
• Days End Farm
• Defense
• Defend
• Defender
• Defeated
• Geoworks Esp Assembly header file
• SmartWare II Data definition
• Defaults - definitions
• TLink - WLink Linker definition file
• Design Exchange Format
• Data Exchange Format
• Development and Evaluation Facility
• Defense

DEF is also in:

• File Extensions
• General
• Law
• Military
• Non-Profit Organizations
• Sports