CRT Scientific & Educational Abbreviation

Circuit

An electrical arrangement requiring a source of voltage, a closed loop of wiring, an electric load and some means for opening and closing it. Or Optimum fire rating issued by Underwriter's Laboratories on roofing. The building codes in some areas require this type of roofing for fire safety. or The path of electrical flow from a power source through an outlet and back to ground.

Cathode Ray Tube (type of TV)

Crater

A depression at the termination of a weld bead or in the molten weld pool in arc welding. Or  A round impression left in a planet or satellite from a meteoroid. Or  impact mark left on a planet or moon by a collision with a another object.

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 CRT or RRT is typically expected to adjust, modify or recommend therapeutic techniques within well-defined procedures based on a limited range of patient responses. In the healthcare setting, usually required supervision by a physician experienced in respiratory care.

Criterion-Referenced Test

Conformal Radiation Therapy

Conformal radiation therapy is a type of external beam radiation therapy. For this procedure, the same type of machine used for regular radiotherapy treatment is combined with a specialized device called a multi-leaf collimator.

Cedar River Trail

Culturally Responsive Teaching