Category: S

  • Snurps

    A colloquial term for “small nuclear ribonucleoproteins,” more commonly known as snRNA.  

  • Snow-plowing

    In arterial angioplasty, the pushing of intravascular debris from one occluded vessel into the opening of an adjacent vessel, causing that vessel to close and the tissue it supplies with blood to infarct.  

  • Snowbank

    Colloquial term for a massive exudate found over the pars plana of the eye in pars planitis.  

  • Snowball sample

    A group of research subjects who help, through word of mouth or casual contact, to select other research subjects.  

  • Snort

    A slang term for inhale, especially for the inhalation of illicit drugs.  

  • Sniff test

    A test used to detect bacterial vaginosis. The discharge from the vaginal area is swabbed, placed on a slide, and 10% KOH (potassium hydroxide) is added. The presence of a fishy odor is indicative of bacterial vaginosis.  

  • Sneddon syndrome

    A rare condition marked by multiple strokes in persons who have livedo reticularis and high blood pressure. Coagulation abnormalities, including antiphospholipid antibodies, are often found in this condition.  

  • Snakeroot

    A toxic plant (Eupatorium rugosum Houtt) once thought to be useful as a remedy for snakebites. Animals that eat snakeroot get trembling disease (or the trembles), and humans who consume fresh raw milk obtained from intoxicated cows or goats develop milk sickness.  

  • Snake

    A reptile possessing scales and lacking limbs, external ears, and functional eyelids. In poisonous snakes, venom is produced in a poison gland, which is connected by a tube or groove to a poison fang, one of two sharp elongated teeth present in the upper jaw. In the U.S., the coral snake, copperhead, water moccasin (cottonmouth),…

  • Snail

    A small mollusk having a spiral shell and belonging to the class Gastropoda. Snails are important as intermediate hosts of many species of parasitic flukes.