R2
From Wikipedia, the free encyclopedia
R2 is a code for:
- R2 is the IATA code for Orenburg Airlines
- Y-DNA Haplogroup R2
R2 is an abbreviation or initialism which may represent:
- R2-D2, a character from Star Wars films and books
- any astromech droid in the Star Wars fictional universe
- an abbreviation for BBC Radio 2, a British radio station
- R2, a conventional symbol for the coefficient of determination of a linear regression.
- R2 is a name for a plane i.e., the two-dimensional vector space of real numbers.
- The SEPTA Regional Rail R2 line in Philadelphia, Pennsylvania
- R2 signalling, a family of telephony protocols for line and register signalling
- the R-2 rocket
- R-2, an original mecha from Super Robot Wars series.
- R2, Redondos (Patricio Rey y sus Redonditos de Ricota), Argentine rock band.
- Release 2, or Second Release (for example Windows Server 2003 R2)
- Ryzom Ring, editor tool for the MMORPG Ryzom
- R2, a non-LTR retrotransposable element which inserts into the ribosomal RNA genes in arthropods and other organisms
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