The meaning of the Acronym NRR is...

NRR is

• National Rescue Ride

More Meanings For NRR:

• No Reply Required
• Not Rave Related
• North Reading Room
• National Research Register
• Net Run Rate
• No Rules Riders
• Nyte's Realm Radio
• Nuclear Receptor Resource
• National Research Register
• UK National Research Register
• No Recognizeable Response
• Noise Reduction Rating
• Normal Rate of Return
• North Reef Rippers
• New Realm Records, Inc.

NRR is also in:

• Accounting
• Chat
• Farming
• Firms
• Hobbies
• Human Genome
• Laboratory
• Libraries
• Physiology
• Science Fiction
• SMS
• Universities