Editing SDR

{{wiktionary|SDR}}

'''SDR''' may refer to:

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== Science and technology ==

* [[ETSI Satellite Digital Radio]]
* [[Selective dorsal rhizotomy]], a neurosurgery
* [[Short-chain dehydrogenase]], short-chain dehydrogenases/reductases family, SDR family
* Single data rate, in [[synchronous dynamic random-access memory]] (SDRAM)
* [[SmartDraw]] image file format, with file extension <code>.sdr</code>
* [[Software-defined radio]], enabling computers to tune a wide spectrum of radio frequencies, using software instead of hardware for modulation and demodulation
* Sony Dream Robot, later dubbed [[QRIO]]
* [[Sparse distributed representation]], in machine intelligence
* [[Standard dimension ratio]] in pipe engineering
* [[Standard-dynamic-range video]], color clarity and realism in images and videos, the current standard for video and cinema displays
* Super dynamic range, [[SDR (audio)]] or XDR, an encoding system for audio cassettes
* [[System of distinct representatives]], in mathematics

== Economics ==

* [[Special drawing rights]], foreign-exchange reserve assets overseen by the IMF
* [[Social discount rate]], a measure of the value of diverting funds to social projects

== Media and entertainment ==

* Stardust Records, a [[Stardust Promotion]] label
* [[Süddeutscher Rundfunk]], former public broadcaster in Germany, then merged into Südwestrundfunk (SWR)
* ''[[Swiss Derivatives Review]]'', a magazine for the futures and options industries

== Military ==

* [[Strategic Defence Review (disambiguation)|Strategic Defence Review]], of the UK MoD
* [[System design review]] of a program, US

== Places ==

* [[Santander Airport]] (IATA airport code)
* [[Somali Democratic Republic]]<!-- fails [[WP:DABACRO]] -->
* [[Southern Distributor Road]], Newport, Wales

== Other uses ==

* [[Sales development representative]]
* [[School District of Reedsburg]]
* [[South Devon Railway (heritage railway)|South Devon Railway]], a heritage railway in England

{{disambiguation}}