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  • Gable Roof

    A pitched roof characterized by square-cut ends and sides that slope down from the ridge line to the eaves. These are the most common roof style on homes and other small buildings.

  • Gable Wall

    A wall rising to meet a gable roof at the end of a building. these walls are found only at the ends of gable roofs and they often include an attic vent near the top of the wall.

  • gag reflex

    Automatic spasm of the airway in response to irritation of the throat.

  • gait

    The way a person walks.

  • gallbladder

    The sac located just beneath the liver that concentrates and stores bile.

  • Gallon

    Unit of liquid measure. One U.S. type has the volume of 231 cubic inches. One imperial type equals 1.201 U.S. type.

  • Gallons per Minute (gpm)

    Unit of volume measurement used in the U.S. fire service for water movement.

  • Gambrel Roof

    A roof characterized by a single ridge line from which roof sections on both sides of the ridge descend at two different pitches. These roofs are common on barns and other farm buildings. Because of the different angles of the Read on! →

  • Gamewell

    brand of wind-up, fire alarm telegraph system for sending coded pulses to alert central alarm station of fire alarm activation

  • gamma ray

    Radioactive emission from the nucleus of an atom, with high penetrating ability.

  • Gang Nail

    Form of gusset plate. These thin steel plates are punched with acutely V-shaped holes that form sharp prongs on one side that penetrate wooden members to fasten them together.

  • gangrene

    Local tissue death as the result of injury or cutting off of its blood supply.

  • Gas

    Compressible substance, with no specific volume, that tends to assume the shape of a container; moles move about most rapidly in this state

  • Gas

    Compressible substance, with no specific volume, that tends to assume the shape of a container; moles move about most rapidly in this state

  • Gaskets

    Rubber seals used in fire hose couplings and pump intakes to prevent the leakage of water at connections.

  • gastric

    Pertaining to the stomach.

  • gastrointestinal

    Pertaining to the stomach and intestines.

  • Gate Valve

    Control valve with a solid plate operated by a handle and screw mechanism. Rotating the handle moves the plate into or out of the waterway.

  • Gate Valve

    Control valve with a solid plate operated by a handle and screw mechanism; rotating the handle moves the plate into or out of the waterway

  • Gate Valve

    Control valve with a solid plate operated by a handle and screw mechanism; rotating the handle moves the plate into or out of the waterway

  • Gate valve

    Control valve with a solid plate operated by a handle and screw mechanism. Rotating the handle moves the plate into or out of the waterway. (See also #Hydrant Gate)[3]

  • Gated Wye

    Hose appliance with one female inlet and two or more male outlets with a gate valve on each outlet.

  • Gauge

    Instrument used to show the operating conditions of an appliance or piece of equipment.

  • gauge

    A measurement referring to the diameter of a needle cannula. Sizes range from 12-gauge (very large) to 30-gauge (very small) needles. The larger the gauge number, the smaller the lumen of the needle.

  • Generator

    Auxiliary electrical power generating device. Portable types are powered by small gasoline or diesel engines and generally have 110 and/or 220 volt capacities.

  • generic name

    The name given to a drug by the company that first manufactures it. It is usually a simplified version of the chemical name.

  • genitalia

    The male and female external sex organs.

  • geriatric

    Referring to the elderly.

  • gestation

    Pregnancy.

  • Girder

    A horizontal structural member used to support beams or joists. Girders are almost always of larger dimension than the members they support.

  • gland

    Any organ or group of cells that produces any type of secretion.

  • Glas-Master tool

    brand of specialized vehicle extrication tool, most notably including a glass cutting saw for removal of automobile windshields.

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