The meaning of the Acronym XLR is...

XLR is

• Xternal Live and Return

More Meanings For XLR:

• X Lower Right
• X Lower Right
• Xternal Live and Return
• Extra Low Resistance
• Extra Long Run
• Xternal Live Return
• Xtremely Large Robot

XLR is also in:

• Databases
• Electronics
• File Extensions
• Science Fiction
• Software