Author: Glossary

  • Osmic acid

    A volatile, colorless compound formed by heating osmium in air. It is used as a caustic, a stain for fats, and a tissue fixative for electron microscopy.  

  • Osmesthesia

    Olfactory sensibility; the power of perceiving and distinguishing odors.  

  • Osculation

    The union of two vessels or structures by their mouths.  

  • Oscillopsia

    The visual perception that stationary objects are swinging. This perception is an illusion, and is usually associated with vestibular dysfunction; also seen in multiple sclerosis. Continuous, involuntary, and chaotic eye movements that result in a visual disturbance in which objects appear to be jumping or bouncing.  

  • Oscillometer

    A machine used to measure oscillations, especially those of the bloodstream.  

  • Oscillograph

    An electronic device used for detecting, displaying, and recording variations in electrical phenomena. In medicine, electrocardiographs and electroencephalographs are examples of the application of this technique.  

  • Oscillogram

    A graphic record made by the oscillograph.  

  • Oscillate

    To rapidly move back and forth between two locations or physical states.  

  • Oscheolith

    A calcification or stone in the scrotal sebaceous glands.  

  • Oscheohydrocele

    Scrotal hydrocele; collection of fluids in the sac of a scrotal hernia.