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Glossary

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E

  • 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.

  • eye

    The organ of sight or vision. In man, and vertebrates generally, it is properly the movable ball or globe in the orbit, but the term often includes the adjacent parts.

  • eye bath

    A small glass or vessel for applying lotion to the eye. This is often necessary to sooth irritation.

  • eye massager

    Instrument to stimulate the action of the eye.

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