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Glossary

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P

  • platform barrow

    A wheeled hand cart for transporting luggage, goods and equipment along station platforms.

  • platform bench

    A seat provided on the platform for the use of travellers.

  • platform indicator

    An electrical indicator denoting the occupation of a platform line in a station.

  • platform notice

    A sign or notice used to provide information or warnings on railway platforms.

  • platform scales

    Scale in which the balance pan for loads is a platform mounted on a balanced beam or series of levers; usually used for heavy goods, often in bulk.

  • platform sign

    Any information sign or warning notice situated on a station platform.

  • platform ticket machine

    A free-standing, or wall-mounted, coin operated machine for the unattended sale of platform tickets.

  • playing card

    Cards made in sets of a designated number and marked for use as game accessories during play. The markings or designs may follow a standard suit or rank system or may be special and individualized.

  • playing cards

    Cards made in sets of a designated number and marked for use as game accessories during play; the markings or designs may follow a standard suit or rank system or may be special and individualized.

  • plethysmograph

    An instrument for recording and measuring variations in the volume of organs or parts of the body. This is often caused by changes in blood pressure.

  • pleura

    The membranes covering the lungs and the inner cavity

  • pleurisy

    A condition caused by the inflammation of the pleura (the linings between the lungs and the ribcage). Symptoms include fever, chest pain and discomfort.

  • pleximeter

    A small, hard, elastic plate, made of ivory, bone, or rubber, placed in contact with body to receive a blow from a hammer or percussor.

  • pliers

    Pincerlike hand tools with scissors action, usually with serrated jaws; used for gripping, holding, bending, and cutting. DAC.

  • plug tap - cutting tool

    Cylinder-shaped tap used for cutting internal screw threads.

  • pneumonia

    Inflammation of the lungs caused by bacteria. The air sacs (alveoli) become filled with inflammatory cells and the lungs eventually become solid.

  • pocket sextant

    Minature form of sextant designed to fit in pocket when carried - includes box sextant.

  • pocket watch

    Watches meant to be carried in pockets, as opposed, for example to be worn on the wrist or carried on chains.

  • poems

    Written or oral compositions characterized by condensed language chosen for sound and suggestive power as well as meaning, and by the use of such literary techniques as structured meter, natural cadences, rhyme, or metaphor. AHD.

  • poison

    Any agent which, when introduced into the animal organism, is capable of producing a morbid, noxious, or deadly effect upon it. poisons are usually defined seperately from toxins or venoms as substances which are absorbed through epithelial linings such as the skin or gut.

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