The meaning of the Acronym XRR is...

XRR is

• X- Ray Reflectivity

More Meanings For XRR:

• XML Registry/ Repository
• X- Ray Reflectivity
• X- Ray Reflectivity
• X- Ray Reflectometry
• X-Rated Records, Inc.
• Ross River, Yukon, Canada

XRR is also in:

• Airport Codes
• Chemistry
• Firms
• Physics
• Software