CRT

CRT may refer to:

Science

• Calreticulin, a protein
• Chinese remainder theorem, a method to solve linear congruence equation systems
• CRT (genetics), a gene cluster
• An abbreviation for Crater (constellation)

Medicine

• Capillary refill time, the rate at which blood refills empty capillaries
• Cognitive Retention Therapy, a dementia treatment
• Cardiac resynchronization therapy, a treatment for heart failure, and CRT defibrillator (CRT-D)
• Corneal Refractive Therapy, in optometrics
• Certified Respiratory Therapist
• Chemoradiotherapy, the combination of chemotherapy and radiotherapy to treat cancer

Technology

• Cathode-ray tube, vacuum tube display, widely used before the appearance of flat screens
• SecureCRT, a telnet client by VanDyke Software, formerly CRT
• .crt, X.509 Certificate filename extension
• The C runtime library

Transport

• Chongqing Rail Transit, China
• Connecticut River Transit, former bus service for Windsor County and Windham County, Vermont, US
• Cross River Tram project, London, England, UK
• CRT Group, a transport company in Australia
• Former Chicago Rapid Transit Company

Other uses

• Canadian Railway Troops, in the First World War
• Charitable Remainder Trust, a charitable trust which provide income to a beneficiary until the trust terminates, after which the remainder is transferred to a charitable organization
• Claiming Rule Teams, in motorcycle racing
• Cognitive Reflection Test, in psychology
• Columbia Basin Trust
• Connecticut Repertory Theatre, at the Storrs campus of the University of Connecticut
• Correctional Emergency Response Team
• Critical race theory, in social sciences
• Current reality tree (theory of constraints), in process management
• ISO 639:crt or Iyojwa'ja Chorote, a language spoken in Salta province, Argentina