Category: W

A three-dimensional mapping system that measures the irregularities of an optical system (e.g., the human eye or a telescope lens); used in ophthalmology to detect refractive aberrations. Parallel light rays are directed toward the eye. If there are no aberrations, the returning light rays remain parallel. Any deviation indicates a defect that can alter the…

An arrhythmia with a sustained rate of more than 100 bpm in which the surface electrocardiogram reveals QRS complexes lasting at least 120 msec. WCT is usually caused by ventricular tachycardia, although it may occasionally result from a supraventricular tachycardia whose conduction through the ventricles produces an abnormally wide QRS complex.  

The level at which rock or any underground stratum is saturated with water. This overlies an impervious stratum.  

A swelling seen in tuberculous arthritis, especially of the knee.  

A suture of varying gauges of metal (usually stainless steel) that may be used in a wide variety of applications, including wound closure, intestinal repair, and the repair of sternotomies.  

A stomach with the pylorus situated unusually high, causing slow emptying.  

The third or terminal stage of malaria during which sweating occurs.  

Light-colored, elevated areas of various sizes occurring on the ventricular surface of the anterior leaflet of the mitral valve in endocarditis.  

A sound made up of all audible frequencies.  

Condition in which the medial border of the scapula is prominent, usually the result of paralysis of the serratus anterior or trapezius muscles.