CTR

{{wiktionary|CTR|ctr}} '''CTR''' may refer to: {{TOC right}} ==Engineering, science and technology== * Counter mode (CTR mode), a cryptographic mode of operation for block ciphers * X-ray crystal truncation rod, a technique to measure properties of crystal surfaces * Current transfer ratio, in an opto-isolator device * Content Threat Removal, a cyber security technology that defeats content threats

==Government== * Cooperative Threat Reduction, an initiative to secure and dismantle weapons of mass destruction in former Soviet Union states * Currency transaction report, a report about transactions that the Bank Secrecy Act requires U.S. financial institutions to file with the Internal Revenue Service

==Media, arts and entertainment== * ''Contemporary Theatre Review'', a British academic journal of performing arts * ''Crash Team Racing'', Naughty Dog's 1999 video game for the Sony PlayStation ** ''Crash Team Racing Nitro-Fueled'', its 2019 remake

==Medicine== * Cardiac resynchronization therapy * Cardio-thoracic ratio, a measure of the size of heart * Carpal tunnel release, surgery for treating carpal tunnel syndrome * Cervico-thoracic ratio, a measure of segmental mobility in the spine * Clinical trials registry, an official catalog for studies about health interventions, such as drugs

==Organizations== * Center for Transportation Research UT Austin, a research center at the University of Texas at Austin, US * Center for Turbulence Research, a research institute at Stanford University, US * Correct the Record, an American political action committee which supported Hillary Clinton's 2016 presidential campaign * Computing-Tabulating-Recording Company, a company that was renamed IBM in 1924

==Transport== * Aerolíneas Centauro (ICAO airline designator: CTR), an airline in Mexico * Cattle Creek Airport (IATA airport code: CTR), an airport in Australia * Controlled traffic region, a controlled airspace zone, typically around airports * Carlton Trail Railway, a Saskatchewan, US shortline railway * Chester railway station (station code), England

===Automobile models=== * Honda Civic Type R, a car manufactured by Honda * Ruf CTR, a car by Ruf Automobile of Germany

==Other uses== * Click-through rate, a measure of the success of an online advertising campaign * "Choose the right", a common Latter Day Saint saying, often found on a CTR ring * Close target reconnaissance, a military term for scouting in extremely close proximity to the target * Competitive trail riding, an equestrian sport * Costa Rica, ITU country code

==See also== {{canned search|ctr|c-tr|ct-r|c-t-r|ctrs}} * Center (disambiguation) (Center or Centre) for which CTR is an abbreviation of several values  * Control (disambiguation) for which CTR is an abbreviation of several values * {{lookfrom|CTR}} * {{lookfrom|Ctr}} * {{intitle|ctr}} * CTRS

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