Medicine

• Capillary refill
  Capillary refill
  Capillary refill is the rate at which blood refills empty capillaries. It can be measured by holding a hand higher than heart-level , pressing the soft pad of a finger or toe until it turns white, and taking note of the time needed for the color to return once pressure is released. Normal refill...
  
   time, the rate at with blood refills empty capillaries
• Cognitive Retention Therapy
  Cognitive Retention Therapy
  Cognitive Retention Therapy also known as the Ashby Memory Method is a Cognitive therapy for dementia, based on the research of Dr. Mira Ashby. It is adapted from her programs for brain injury rehabilitation, for which she won the Order of Canada in 1984. CRT is a specifically tailored program to...
  
  , a dementia treatment
• Cardiac resynchronization therapy, a treatment for heart failure
  • CRT-D, an implanted cardiac resynchronization device
    Implanted cardiac resynchronization device
    An implanted cardiac resynchronization device is a medical device used in cardiac resynchronization therapy . It resynchronizes the contractions of the heart’s ventricles by sending tiny electrical impulses to the heart muscle, which can help the heart pump blood throughout the body more efficiently...
    
    
• Corneal Refractive Therapy
• Certified Respiratory Therapist
  Certified Respiratory Therapist
  A Certified Respiratory Therapist , formerly Certified Respiratory Therapy Technician , is a therapist who has graduated from a respiratory therapy program at a university or college and has passed a national certification exam...
  
  , a respiratory therapist who works under the direction of Registered Respiratory Therapist
  Registered Respiratory Therapist
  A Registered Respiratory Therapist is a cardiopulmonary therapist and specialist who is required to exercise considerable independent clinical judgment in the respiratory care of patients...
  
  s and Physicians

Other

• Cathode ray tube
  Cathode ray tube
  The cathode ray tube is a vacuum tube containing an electron gun and a fluorescent screen used to view images. It has a means to accelerate and deflect the electron beam onto the fluorescent screen to create the images. The image may represent electrical waveforms , pictures , radar targets and...
  
  , a type of vacuum tube used for information displays or oscilloscopes
• Casual Relief Teacher
  Teacher
  A teacher or schoolteacher is a person who provides education for pupils and students . The role of teacher is often formal and ongoing, carried out at a school or other place of formal education. In many countries, a person who wishes to become a teacher must first obtain specified professional...
  
  
• The C runtime library
  Runtime library
  In computer programming, a runtime library is a special program library used by a compiler, to implement functions built into a programming language, during the execution of a computer program...
  
   (part of the C standard library), in programming
• Criterion-referenced test
  Criterion-referenced test
  A criterion-referenced test is one that provides for translating test scores into a statement about the behavior to be expected of a person with that score or their relationship to a specified subject matter. Most tests and quizzes written by school teachers are criterion-referenced tests. The...
  
  , a type of exam
• Charitable remainder trust
• Connecticut Repertory Theatre, a regional equity theatre in Storrs, Connecticut
• Corneal Refractive Therapy, in optometrics
• Chinese Remainder Theorem
  Chinese remainder theorem
  The Chinese remainder theorem is a result about congruences in number theory and its generalizations in abstract algebra.In its most basic form it concerned with determining n, given the remainders generated by division of n by several numbers...
  
  , in mathematics
• Crystallographic restriction theorem
  Crystallographic restriction theorem
  The crystallographic restriction theorem in its basic form was based on the observation that the rotational symmetries of a crystal are usually limited to 2-fold, 3-fold, 4-fold, and 6-fold...
  
  , in mathematics
• Crt (genetics)
  Crt (genetics)
  CRT is the gene cluster responsible for the biosynthesis of carotenoids....
  
  , a gene cluster
• Chongqing Rail Transit, a metro system in Chongqing, China
• Cross River Tram
  Cross River Tram
  Cross River Tram was a Transport for London proposal for a tram system in London, England, UK. It was planned to run on a north-south route from Camden Town in the north, through and , to Peckham and Brixton in the south....
  
  , in London, England, UK
• CRT Group
  CRT Group
  CRT Group is an intermodal transport company in Australia. Begun as Colin Rees Transport , a taxi truck company in suburban Sydney in the 1950s, it became known as the CRT Group in 1981, and by the time of its acquisition by QR Limited was in the top 10 logistics companies in Australia with a...
  
  , a transport company in Australia
• Chicago Rapid Transit Company
  Chicago Rapid Transit Company
  The Chicago Rapid Transit Company was a privately owned firm providing rapid transit rail service in Chicago, Illinois and several adjacent communities between the years 1924 and 1947...
  
  , a defunct operator of the Chicago 'L'
• Continuously regenerating particulate trap, a filter used to handle particulate emissions from diesel engines
• Critical race theory
  Critical race theory
  Critical Race Theory is an academic discipline focused upon the intersection of race, law and power.Although no set of canonical doctrines or methodologies defines CRT, the movement is loosely unified by two common areas of inquiry...
  
  , a school of thought about racism
• The Current reality tree (TOC)
  Current reality tree (TOC)
  One of the Thinking Processes in the Theory of Constraints, a Current Reality Tree is a way of analyzing many system or organizational problems at once. By identifying root causes common to most or all of the problems, the CRT can greatly aid focused improvement of the system...
  
  of Theory of Constraints, in process management