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What does NR stand for?

NR stands for Noise Reduction

This definition appears very frequently

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Other Resources:
We have 53 other meanings of NR in our Acronym Attic

Samples in periodicals archive:

Army personnel armor system ground troops helmet and the newer advanced combat helmet, the ITH provides hearing protection through both active and passive noise reduction technologies and enables soldiers to communicate in the high-noise environment (up to 95-plus decibels) that is typical of the M1114 up-armored HMMWV.
Wireless network operators must deal with an array of voice quality issues, and Ditech's SX-24 and SX-30 products provide an effortless and extremely cost-effective means of deploying advanced noise reduction and a whole host of voice enhancement technology into their networks," said Ray Caron, Ditech's Vice President of Marketing.
Noise Noise and noise reduction are major problems in many work areas.