Category: E

  • Environmental control

    In occupational health and safety, a design feature, e.g., in a hospital or workplace, that limits the risk of on-the-job injury.  

  • Envelope

    A covering or container. The enclosure made of glass that encompasses the X-ray or rectifying tube. The glass envelope of the X-ray tube is typically composed of Pyrex due to its ability to withstand high temperatures.  

  • Enucleator

    An instrument for evacuating tissue intact, such as the ocular globe.  

  • Entry

    The passage of extracellular chemicals or organisms into cells.  

  • Entropionize

    To invert or correct by turning in.  

  • Entrance skin exposure

    The dose of radiation to which the surface of the body is exposed during a radiographic procedure.  

  • Entrain

    To alter the biological rhythm of an organism so that it assumes a cycle different from a 24-hour one.  

  • Entrails

    The intestines of an animal.  

  • Entozoon

    Any animal parasite living within the body of another animal.  

  • Entotic

    To the interior of the ear or to the perception of sound as affected by the condition of the auditory apparatus.