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XR or Xr may refer to:

Science and technology[edit]


  • IOS XR, the software for Cisco Systems' high-end carrier-grade routers
  • Cairo (graphics), the original name for a graphics library software
  • Cross-reference, in documents, indices, databases, and programming
  • Index register, a type of register of a CPU
  • X Reality (XR), technology-mediated experiences that combine digital and biological realities
  • drug use used at drug stores also known as drugs sold by pharmacist.


  • XR (Ford Australia), a designation given to some high-performance vehicles sold by Ford Australia
  • Honda XR series, a line of off-road and dual-sport motorcycles manufactured by Honda

Other uses in science and technology[edit]

  • Cross-reference, in documents, indices, databases, and programming
  • Extended release in certain medications, for example Adderall XR
  • Extended reality, meaning all real-and-virtual combined environments such as VR and AR.
  • XR_(variable), where "x" is simply a variable for any type of digital or analog reality.

Other uses[edit]