RR
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Look up RR or rr in Wiktionary, the free dictionary. |
RR or rr may refer to:
Arts and entertainment
- RR (film), a 2008 experimental film by James Benning
- Ruff Ryders Entertainment, a record label and East Coast rap collective
- Randy Rhoads (1956–1982), American guitarist
Businesses and organizations
- Rashtriya Rifles, an Indian counter-insurgency force
- Rekords Rekords (logo), an American record label
- Royal Air Force (IATA airline designator)
- Richard Rohac (logo), an Austrian art metal firm
- ITU Radio Regulations
Language
- rr (digraph)
- Revised Romanization of Korean, the official Korean language romanization system in South Korea
- Revised Romanization of Hangeul, the former official Hangeul language romanization system in South Korea
Science and technology
Biology and medicine
- RR, a rhesus factor phenotype
- RR, abbreviation for blood pressure measurements taken with a sphygmomanometer invented by Scipione Riva-Rocci
- RR interval (R wave to R wave interval), the inverse of heart rate
- Relative risk, in statistics and epidemiology
- Respiratory rate, a vital sign
Other uses in science and technology
- Rapid Refresh, a short-range numerical weather prediction model
- Rear-engine, rear-wheel-drive layout, a term used in automotive technology
- Resource record, in the Domain Name System
- Round-robin scheduling, an algorithm for coordinating processes in an operating system
Sports
- Rajasthan Royals, an Indian Premier League franchise
- Ranchi Rhinos, a defunct Hockey India League franchise
Transportation
- Railroad
- Rolls-Royce plc (LSE code and logo)
- RR, a predecessor of the R (New York City Subway service)
- Regional Road, a class of road in Ontario
Other uses
- Roraima (ISO 3166 code BR-RR), a state in Brazil
See also
This article is issued from Wikipedia - version of the 10/19/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.