Category: S

  • Stereoanesthesia

    The inability to recognize objects by feeling their form.  

  • Stereoacuity

    The accuracy and sharpness of images acquired with binocular depth perception.  

  • Steradian

    The unit of measurement of solid angles. It encloses an area on the surface of a sphere equal to the square of the radius of the sphere.  

  • Step-down unit

    A unit to which stable patients are sent either after being cared for in intensive care units (ICUs) or instead of receiving care in ICUs.  

  • Stenotrophomonas maltophilia

    A gram-negative, motile, strictly anaerobic bacillus of the family Pseudomonadaceae. It may cause pneumonia, meningitis, endocarditis, conjunctivitis, wound infections, and infections related to the use of central venous catheters. Trimethoprimsulfamethoxazole is used to treat infections with this organism. This species was formerly called Pseudomonas maltophila and Xanthomonas maltophila.  

  • Stenothorax

    An unusually narrow thorax. Atypical constriction of the chest.  

  • Subaortic stenosis

    A congenital constriction of the aortic tract below the aortic valves.  

  • Stenopaic

    Provided with a narrow opening or slit, especially denoting optical devices to protect against snow blindness.  

  • Stenocompressor

    An instrument for compressing Stensen’s ducts to stop the flow of saliva.  

  • Stenocephaly

    Narrowness of the cranium in one or more diameters. Unusual constriction of the head.