From Wikipedia, the free encyclopedia
R2 , R02 , R.II , R.2 or R-2 may refer to:
R 2 or r 2 (pronounced R-square), the
coefficient of determination of a linear regression in statistics
R 2 , the two-dimensional
real coordinate space in mathematics
R2: Risk of explosion by shock, friction, fire or other sources of ignition , a risk phrase in chemistry
R2 RNA element , a cis-acting element identified in R2 retrotransposons which is involved in priming the reverse transcription process
ATC code R02 Throat preparations , a section of the Anatomical Therapeutic Chemical Classification System
Haplogroup R2 (Y-DNA) , a human Y-chromosome haplogroup
receptor 2 , the second in line of a series of
cellular receptors , generally at the end of an acronym
Gangrene (ICD-10 code)
Robonaut 2 , a NASA humanoid robotic development project
R2 signalling , a family of telephony protocols for line and register signalling
.r02 , a RAR file extension
Radare2 , an open source reverse engineering framework also known as r2
R2 (Rodalies de Catalunya) , a commuter rail line in Barcelona, Catalonia, Spain
R2 (RER Vaud) , an S-Bahn line in the canton of Vaud
Wilmington/Newark Line (R2 Wilmington/Newark line )
Warminster Line (R2 Warminster line )
Radial Road 2 or R-2, an arterial road of Manila, Philippines
Autopista Radial R-2 , a
Spanish radial motorway connecting Madrid to Guadalajara and passing through Alcobendas and connecting to N-320
R2 expressway (Slovakia)
R2 Marine Dr , an express bus route in Metro Vancouver, British Columbia, Canada
R2 road (Zimbabwe) , a road connecting Plumtree and Harare
Orenburg Airlines (IATA code)
R2 , a sub-class of Group R rally cars
DFW R.II , a 1918 German bomber aircraft
Fiat R.2 , a 1919 Italian reconnaissance aircraft
HMS Zest (R02) , a World War II British Royal Navy Z-class destroyer
Jaguar R2 , Jaguar Racing's car for the 2001 Formula One season
Linke-Hofmann R.II , a World War I German bomber aircraft
ORA R2 , a Chinese electric city car
Panzer 35(t) , a Czech tank whose Romanian model was known as the R-2.
Polikarpov R-2 , a Soviet Union copy of the 1931 British Airco DH.9A light bomber aircraft
Ross R-2 Ibis , a glider
Subaru R2 , a 2003 Japanese car
USS R-2 (SS-79) , a 1918 R-class coastal and harbor defense submarine of the US Navy