highwall
The unexcavated face of exposed overburden and coal in a surface mine.
Entries starting with H
315 entries.
hill start
nounAutomotive
The act of starting a motor vehicle moving forwards from a complete stop when going uphill, typically requiring the use of the handbrake.
hilling
The act or process of heaping up earth around plants.
HIP
Acronym of Higher Intermediate Point.
hiplet
nounManufacturing
A type of pantyhose with a waistband above the hip.
hipline
nounManufacturing
The line of a garment around the hips.
HiRISE
Initialism of High Resolution Imaging Science Experiment, a camera on board the Mars Reconnaissance Orbiter.
hitch
A hole cut into the wall of a mine on which timbers are rested.
hitchment
The marrying of two or more portions of one shipment that originate at different locations, moving under one bill of lading, from one shipper to one consignee.
HIV
Initialism of hydraulic isolation valve.
HMC
nounManufacturing
Initialism of horizontal machining center.
ho
Used to attract attention to something sighted, usually by lookouts.
hoarding
nounConstruction
A temporary fence-like structure built around building work to add security and prevent accidents to the public.
hod boy
A boy employed to convey coal to wagons in the working place.
hog
verbMachining
To take a rough cut, quickly removing material; to hog out.
hogger pump
The uppermost pump in the pit of a mine.
hogging
nounMachining
Making a rough cut to quickly remove material
hoistman
A person who operates the hoisting machinery.
hoistroom
A space at the top of a mineshaft that holds the elevator to lift humans and equipment using a pulley and cable.
Holbein stitch
A simple, reversible line embroidery stitch commonly used in blackwork and Assisi embroidery.
hold
The cargo area of a ship or aircraft (often holds or cargo hold).
hold time
The amount of time spent in a phone queue on hold.
holder-up
nounMetalworking
A bucker; one who bucks rivets, typically holding a heavy bucking bar against the bucktail of a rivet (heated if necessary till it is soft), while the riveter (or gunner or, before mechanisation, basher) uses a rivet gun (an adjustable-impulse pneumatic hammer) fitted with a rivet set, against the factory head to provide impulses which upset the bucktail into a field head.
holding pattern
A path taken by an aircraft waiting to land.
hole
A passing loop; a siding provided for trains traveling in opposite directions on a single-track line to pass each other.
holing
undercutting in a bed of coal in order to bring down the upper mass.
holophotal
Causing no loss of light; reflecting the rays of light without perceptible loss.
home
adverbMarine and shipyard
into the right, proper or stowed position
home computer
A computer intended for use in the home.
home run
A connection from a central distribution point or circuit breaker to a destination.
home signal
nounRail equipment
A railway signal controlling entry to the next section of line. Originally it meant a signal governing entry into a station.
homebuild
An item designed to be assembled by amateurs.
homeset
The type used as a standard by a specific publisher.
honey plant
Any plant from which bees usually collect nectar, pollen, or both for making honey.
honeycomb
Material manufactured with small hollow cells, sometimes sandwiched between two flat sheets, which is used to make light, stiff structural components.
honeycomb coil
A type of coil structure used in electrical wire winding, in order to reduce capacitive effects.
honeycomb quilt
A quilt made of many hexagonal pieces of fabric to create a design based on the structure of a bee's honeycomb.
honeycomb radiator
nounAutomotive
A radiator core consisting of a stack of small tubes with flared ends resembling a honeycomb.
honeycomb sandwich
nounConstruction
A composite structure made up of a honeycomb core sandwiched between two facesheets.
honeycomb stitch
A decorative stitch used in knitting and embroidery that creates a hexagonal pattern.
Hong Kong finish
A technique for finishing a seam where the raw edges of the fabric are bound with another fabric, usually with bias tape or silk; a bound seam.
honorary steam locomotive
A diesel locomotive that outputs a large amount of exhaust, to the point it resembles the exhaust from a steam locomotive, particularly those produced by the American Locomotive Company.
hood
nounAutomotive
A soft top of a convertible car or carriage.
hook
A field sown two years in succession.
hook flash
A signal that briefly disconnects the local loop circuit by means of the hookswitch or a dedicated button, used to control functions on the public telephone exchange.
hook pin
nounConstruction
A pin with a hooked head, used to pin together the frame of a floor or roof.
hop garden
A field, fields or farm where hops are grown.
hopback
nounManufacturing
A sealed chamber between the brewing kettle and counter-flow wort chiller, into which hops are added.
hopper car
A railroad freight car which is used to transport bulk materials in a hopper, the load being usually discharged through one or more hinged doors at the bottom of the car.
hopper wagon
A railway goods wagon which is used to transport bulk materials in a hopper, the load being usually discharged through the bottom of the wagon.
hopyard
An outdoor area where hops are grown.
horizontal machining center
nounManufacturing
A machining center (of milling type) whose primary spindle is of the horizontal type.
horn
nounCarpentry
An object whose shape resembles a horn, such as cornucopia or the point of an anvil.
horse
A mass of earthy matter, or rock of the same character as the wall rock, occurring in the course of a vein, as of coal or ore; hence, to take horse (said of a vein) is to divide into branches for a distance.
horsebox
A van-type railway vehicle specially built for the carriage of horses.
horsepower-hour
A unit of energy equal to the amount of work a horse is capable of delivering during an hour.
hose bridge
A device laid over a hose so that vehicles can pass over it without pinching or damaging it.
hose jacket
A device that clamps around a burst or leaking portion of hose.
hosepack
A kind of backpack containing, or made from, fire hose.
HOT
nounAutomotive
Acronym of high-output turbo (turbocharger).