geothermy
The process and practice of harvesting heat produced by the Earth to be used as an energy source.
Entries starting with G
177 entries.
get to grass
To leave a mine and get to the surface, particularly to escape an underground disaster.
getter
A miner who dug coal, contrasted with the putter, who took it to the surface.
GFET
Acronym of graphene field effect transistor
ghost call
A telephone call for which, when the recipient of the call answers, there is no one on the other end.
Gibson ring
nounRail equipment
A retaining ring used to fit a steel tire/tyre to the wheel of rolling stock.
gigaampere
An SI unit of current equal to 10⁹ amperes. Symbol: GA
gigagram
An SI unit of mass equal to 10⁹ grams. Symbol: Gg
gigajoule
An SI unit of energy equal to 10⁹ joules. Symbol: GJ
gigakatal
An SI unit of catalytic activity equal to 10⁹ katals. Symbol: G
giganewton
An SI unit of force equal to 10⁹ newtons. Symbol: GN
gigasecond
An SI unit of time equal to 10⁹ seconds. Symbol: Gs. (= 31.7098 years)
giggle juice
Nitrous oxide, laughing gas.
gimmick capacitor
A capacitor consisting of two insulated wires twined together.
gimp
Of yarn, cord, thread, etc., to wrap or wind (surround) with another length of yarn or wire in a tight spiral, often by means of a gimping machine, creating 'gimped yarn', etc. Also, generally, to wrap or twist with string or wire. See gimped.
gimped
adjectiveManufacturing
Adorned with gimp (decorative trim); edged or embroidered.
GIP
Initialism of GSM Interworking Profile (profile that allows a DECT base station to form part of a GSM network, given suitable handsets)
girthweld
A circumferential weld that joins two cylindrical sections, such as pipes or pressure vessels, by welding around their perimeter. Girth welds are commonly used in pipeline construction.
gland
A compressable cylindrical case and its contents around a shaft where it passes through a barrier, intended to prevent the passage of a fluid past the barrier, used for example around a ship’s propeller shaft or around a tap, valve or faucet.
glass felt
nounConstruction
glass fibers bonded into a sheet with resin and suitable for impregnation with asphalt in the manufacture of bituminous waterproofing, roofing membranes and shingles.
glasspack
nounAutomotive
A kind of automobile muffler in which the exhaust gas passes straight through the center of the muffler. It consists of a smaller tube centered inside a larger tube that is enlarged or swollen in the middle, the gap between tubes being filled with fiberglass.
glaze
The vitreous coating of pottery or porcelain; anything used as a coating or color in glazing.
glaze coat
nounConstruction
a thin protective coating of bitumen applied to the lower plies or top ply of a roof membrane when application of additional felts or surfacing are delayed.
glory hole
An excavation into the sea floor designed to protect the wellhead equipment installed at the surface of a petroleum well from icebergs or pack ice.
glove box
nounAutomotive
A small compartment with a door on the dashboard of a car, usually on passenger side, used to store (and sometimes lock) items.
glove compartment
nounAutomotive
A compartment recessed in an automobile’s dashboard, that usually has a door and can be locked, intended to hold gloves, papers, etc.
glue strip
nounWoodworking
A narrow band or line of adhesive applied along the edge of a workpiece to bond it to another piece.
glut
A piece of wood used to fill up behind cribbing or tubbing.
GMPLS
Initialism of generalized multi-protocol label switching.
go to bed
Of a newspaper: to finish being prepared for printing.
goaf
That part of a mine from which the mineral has been partially or wholly removed.
gob
Waste material in old mine workings, goaf.
GOBLin
Acronym of Gospel Oak to Barking Line, a railway line in north London.
gobline
The outer extent of the gob (waste material) in an old mine.
godet
A piece of fabric inserted into a garment along a seam or cut to lengthen the free edge, and to make a garment roomier and to add a wavy edge cf. gusset.
gods
The quadrats used by printers in throwing on the imposing stone, similar to the movement in casting dice.
goer
A fire incident in progress.
gold bee
Any one of several specific, visually striking yellow or golden species of bees native to North America.
gold blocking
A technique where gold foil or another metallic foil is applied using heat and pressure from an engraved block or die to emboss designs or patterns onto a surface.
gold box
A device used in phreaking to divert an incoming call to a second telephone line.
golden pea
Any of various Mirbelioids with small yellow flowers.
gondola
nounRail equipment
A type of open railway car with low sides, used to carry heavy freight such as crushed rock or steel.
goods van
nounRail equipment
An enclosed railway freight car, especially one with a sliding door.
gore
nounSurveying
A small piece of land left unincorporated due to competing surveys or a surveying error.
goring
A piece of cloth cut diagonally to increase its apparent width.
gouge
Soft material lying between the wall of a vein and the solid vein of ore.
GPD
nounManufacturing
Initialism of grams per denier.
gpf
nounPlumbing
Abbreviation of gallons per flush.
GPRS
Initialism of General Packet Radio Service.
grab
The rescue of a person from a burning structure.
grab iron
nounRail equipment
A metal bar attached to the side of locomotives and railroad cars for use as a handhold.
grade
To remove or trim part of a seam allowance from a finished seam so as to reduce bulk and make the finished piece more even when turned right side out.
grafting
nounCarpentry
A scarfing or endwise attachment of one timber to another.
grain elevator
A large structure for the storage of grain. It is more specialized than a regular granary in that it uses an elevating mechanism to hold the grain in one of many different bins, and that it is designed to fill large trucks and train cars for shipping grain in bulk.
grain engulfment
A condition in which a person is fully submerged in grain, most often in a silo or other grain storage structure.
grain entrapment
A condition in which a person is partially submerged in grain, most often in a silo or other grain storage structure.
grand tourer
nounAutomotive
A kind of sports car designed for high speeds and long distances, combining performance and luxury attributes.
granger road
nounRail equipment
A railroad used mainly for transporting the produce of farmers or grangers.
granny
An older ewe that may lure a lamb away from its mother.
granulated steel
nounMetallurgy
A variety of steel made by a particular process beginning with the granulation of pig iron.