{{Wiktionary|CRT|crt|Crt}} '''CRT''', '''crt''', or '''Crt''' commonly refers to:
* Cathode ray tube, a vacuum tube that can show moving pictures, vector graphics, or lines * Critical race theory, a conceptual framework regarding society, race, and culture
'''CRT''', '''crt''', or '''Crt''' may also refer to: {{TOC right}}
==Law== * Charitable remainder trust, United States * Civil Resolution Tribunal, Canada * Columbia River Treaty, Canada–United States, 1960s
==Science, technology, and mathematics== ===Medicine and biology=== * Calreticulin, a protein * Capillary refill time, for blood to refill capillaries * Cardiac resynchronization therapy (CRT), and CRT defibrillator (CRT-D) * Catheter-related thrombosis, the development of a blood clot related to long-term use of central venous catheters * Certified Respiratory Therapist * Chemoradiotherapy, chemo- and radiotherapy combined * Cognitive Retention Therapy, for dementia * Corneal Refractive Therapy, in optometrics * CRT (genetics), a gene cluster
===Social sciences=== * Cognitive reflection test, in psychology * Current reality tree (theory of constraints), in process management * Culturally relevant teaching, in pedagogy
===Technology=== * Microsoft C Run-Time library * SecureCRT, formerly CRT, a telnet client * .crt, X.509 Certificate filename extension
===Other uses in science and mathematics=== * Chinese remainder theorem, in number theory * Crater (constellation), in astronomy
==Transport== * Canal & River Trust, England and Wales * Changchun Rail Transit, China * Chongqing Rail Transit, China * Connecticut River Transit, a defunct American bus service * Cross River Tram, a defunct proposal in London, England * CRT Group, an Australian transport company * Chicago Rapid Transit Company, a defunct American rail company * Colchester Rapid Transit, a rapid-transit system in Colchester, England
==Other uses== * Canadian Railway Troops, WWI * Claiming Rule Teams, in motorcycle racing * Connecticut Repertory Theatre, University of Connecticut * Correctional Emergency Response Team * Tochigi Broadcasting, a radio station in Tochigi Prefecture, Japan * Iyojwaʼja Chorote language, a Matacoan language of Argentina (ISO 639 code: crt)
==See also== {{Self-reference tool}} {{Disambiguation}}