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Glossary

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E

  • enema syringe

    A syringe for adminstering enemas

  • engraving

    A technique to obtain prints from an engraved surface. Engraving is the practice of cutting into a hard, usually flat surface.

  • envelope

    Rectangular, flat container made of flexible material that is folded to produce overlapping seams that are adhered together on two or three edges; often with a flag closure, and intended for small objects or documents.

  • enzyme

    One of a group of complex organic substances formed in the living cells of plants and animals. A catalyst for the chemical reactions of biological processes.

  • epidemic

    A sudden widespread occurance of an infection with high numbers of people affected.

  • epidemiology

    The study of epidemic disease, including its spread, causes and methods of control.

  • epidural

    A technique used in childbirth and gynaecological surgery. An anaesthetic is injected into the epidural space of the spinal cord, usually via a catheter. Sensation is lost in the abdominal, genital and pelvic areas as a result.

  • epilepsy

    A disorder of brain function characterized by seizures that occur suddenly. The seizures can be triggered by fast flashing lights, especially strobe lighting.

  • ergotism

    Poisoning induced from too much medicinal ergot or eating grain infected by ergot (fungus). Symptoms include spasms, cramp and gangrene. Historically known as St Anthony’s fire because a pilgrimage to his tomb was said to cure the symptoms.

  • essays

    Short literary compositions on single subjects, often presenting the personal view of the author. AHD.

  • etching

    Print made from an etched printing plate, which is a metal plate on which a design is made by coating the plate with an acid-resistant substance, creating a design in the coating, and then exposing the plate to acid, which etches the plate where the metal is exposed. For designs incised directly into a copper plate using a burin or graver, use "engravings (prints)."

  • ether

    A volatile liquid (resulting from the action of sulphuric acid upon alcohol) formerly used as an anaesthetic. Ether was usually inhaled.

  • eudiometer

    A glass instrument for measuring changes in volume of gases. The eudiometer is effective during and following chemical reactions. It often resembles a large upside-down test tube with a scale on the side.

  • eugenics

    The study of human improvement by selective breeding, founded in the 1800s by English scientist Sir Francis Galton. Widely discredited after its use by the Nazi regime.

  • euthanasia

    Euthanasia is the action of directly causing the quick and painless death of a person with a terminal disease. It is illegal in most countries and is a controversial subject. In most cases it is performed as part of the patient's wishes.

  • evil eye

    A manifestation of magic, commonly regarded as a curse which may result in bad luck, illness or even death. It has a place in many different cultures.

  • exercise aids

    trial term S&H

  • exercise chair

    used to simulate the trotting of a horse, also known as a chamber horse

  • exploratory surgery

    A surgical operation used to determine the cause of a patient's symptoms.

  • exposure meter

    Type of light meter that measures the intensity of incident and reflected visible light and converts it into units that photographers use to adjust the aperture & shutter interval of camera

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