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Glossary

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E

  • electrodes

    A conductor which enables a current to go in or out of a particular object, substance or region.

  • electro-diesel locomotive

    A locomotive that can operate with either electric or diesel power.

  • electromagnet

    Magnet constructed from a soft iron core around which is wound a coil of wire. A magnetic field is generated when an electric current is passed through the wire.

  • electromagnetic induction

    Use of magnetism to produce an electromotive force (emf). If a bar magnet is pushed through a wire coil, an electric current is induced, in the coil, as long as the magnet is moving. By the same principle, an electric current is induced in the coil if it is rotated around the magnet,

  • electron microscope

    An electron microscope uses a beam of electrons, instead of light, to produce highly magnified images of objects. As electrons have a much smaller wavelength than visible light, this allows a much higher resolution to be achieved

  • electrophoresis

    The process of separating electrons in a solution by passing an electric current through it.

  • electrophysiology

    Branch of physiology that is concerned with the electric phenomena in living bodies.

  • electrostatic machine

    mechanical device that produces static electricity, or electricity at high voltage and low continuous current.

  • electrotherapy

    The passing of electric currents through the body's tissues to stimulate the functioning of nerves and the muscles.

  • electrotherapy machine

    machine used to deliver therapeutic electric shocks to patients

  • elephantiasis

    Condition in which there is large swelling of the tissues due to blockage of lymph vessels. It is usually caused by parasitic worms.

  • embalming

    The application of chemical preservatives to slow the natural decomposition of a corpse. Modern methods were greatly refined in the 1800s. Although they have been widely used in Europe, the custom remains most commonly used in North America. Formaldehyde is the primary embalming fluid used today. It is a preservative injected into the blood system to replace the blood which is drained out. Embalming fluid can also be pumped into the body cavities as well.

  • embossing

    Producing raised letters or designs on a surface.

  • embossing machine

    A machine which creates a three-dimensional image or design in paper or other ductile materials.

  • embryo

    An animal or human at an early stage of development, before birth. In humans the term refers to an unborn child up to the eighth week of development.

  • emetic

    A substance that causes vomiting.

  • endoscope

    an instrument to look at the internal parts of the body. The modern endoscope is a flexible, fibreglass instrument that can be swallowed by a patient or introduced through a tiny incision in the body.

  • endotracheal anaesthesia

    Inhalation anaesthesia technique in which anaesthetic and respiratory gases pass through a tube placed in the trachea via the mouth or nose.

  • endotracheal tube

    A flexible tube inserted nasally, orally, or through a tracheotomy into the trachea to provide an airway

  • enema

    A liquid injected into the anus. Enemas can be carried out for medical reasons, as a treatment for constipation, or as a way to give drugs.

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