title: SQR (disambiguation)
text: # SQR (disambiguation)
  
  SQR may refer to:
  
  ## Biochemistry
  
  * Succinate-Q reductase, an enzyme complex
  * sulfide:quinone oxidorreductase pathway, see Microbial oxidation of sulfur
  
  ## Computing
  
  * SQR, a programming language
  * SQR codes, Secure Quick Response codes
  
  ## Linguistics
  
  * Siculo-Arabic (ISO 639 language code: sqr)
  * Smiting-blade symbol (hieroglyph)
  
  ## Mathematics
  
  * square (algebra) (sqr, sq)
  * square root (sqr, sqrt)
  
  ## Transportation
  
  * Soroako Airport (IATA airport code SQR) Soroako, South Sulawesi, Indonesia
  * Alsaqer Aviation (ICAO airline code SQR) defunct Libyan airline, see List of airline codes (A)
  * Sultanpur Lodi (Indian rail code SQR), see List of railway stations in India
  
  ## Other uses
  
  * SQR Department Store, see Downtown Anaheim
  