The meaning of the Acronym FID is...

FID is

• Freely Interacting Data
• File Identifier

More Meanings For FID:

• Flame Ionization Detector
• Free Induction Decay
• Financial Information Data
• Fixed Income Division
• Foot In Door
• Flame In Darkness
• Freely Interacting Data
• File Identifier
• Foreign Internal Defense
• Failure Identification
• Flight Implementation Directive
• Federación de Independientes Demócratas
• Fat Inverted Dick
• Frighteningly Intelligent Demigods
• Fishers Island, New York USA

FID is also in:

• Accounting
• Adults
• Airport Codes
• Databases
• Electronics
• Firms
• Funnies
• Military
• NASA
• Physics
• Positions
• Religion
• Spanish