The meaning of the Acronym SDR is...

SDR is

• System Design Review
• Subcontract Data Requirement
• Spacelab Disposition Record (ESA)
• Space Division Regulation

More Meanings For SDR:

• Sounder system Music
• SmartDraw drawing
• Systems of Distinct Representatives
• Software Design Review
• Software Design Requirements
• Session Directory Protocol
• Single Data Rate
• Software Defined Radio
• Special Drawing Rates
• Standard Diameter Ratio
• Sony Dream Robot
• String Defined Randomizer
• Symmetrical Double Rectangle
• System Of Distinct Representatives
• Synchronized Dynamic Ram

SDR is also in:

• Electronics
• File Extensions
• General
• Geology
• Networking
• Plastics
• Unfiled