doghair
Pine forest where the trees have grown extremely thin and close together.
Entries starting with D
483 entries.
doghole
A mine worked by fewer than fifteen miners, which is small enough that some safety laws do not apply.
DOJ
Initialism of double open jaw.
doll
nounRail equipment
A short signal post mounted on a bracket mounted on the main signal post, or on a signal gantry.
dome
nounManufacturing
A press stud or snap fastener.
dome car
nounRail equipment
A railroad passenger car with a glass observation dome.
dongle
A hardware device used by a specific application for purposes of copy protection.
donut spare
nounAutomotive
A type of spare tire. The undersized spare wheel (tire and rim) provided by automotive manufacturers in lieu of a full-sized tire, for use in emergencies, when one of the regular ones can no longer be used.
dook
A heading or roadway following the dip of the strata.
door opener
Any of various devices designed to make opening a door easier.
dope
Any varnish used to coat a part, such as an airplane wing or a hot-air balloon in order to waterproof, strengthen, etc.
doped
adjectiveIndustrial electronics
Describing a semiconductor that has had small amounts of elements added to create charge carriers.
dossil
A roll of cloth for wiping off the face of a copperplate, leaving the ink in the engraved lines.
dot matrix printer
A type of printer that prints characters using an array of small wires that produce an array of dots when striking the paper.
doty
adjectiveCarpentry
Suffering from rot, or waterlogged
double
To sail around (a headland or other point).
double coverage
nounConstruction
Application of asphalt, slate, or wood roofing such that the lapped portion is at least two inches wider than the exposed portion, resulting in two layers of roofing material over the deck.
double cropping
The practice of sequentially raising and harvesting a second (or third, or sometimes more) crop (usually vegetables) in the same field in a single growing season, especially in warmer climates such as California's Imperial Valley or the Rio Grande valley of Texas and Mexico.
double English
The size of type between double pica and double great primer, standardized as 28-point.
double great primer
The size of type between double English and meridian, standardized as 36-point.
double hoe
A tool with a flat blade and a set of metal prongs across from one other (typically extended by a pole handle); hoe with a pitchfork attached.
double knitting
A form of knitting in which two fabrics (connected or not) are knitted simultaneously with two yarns on one pair of needles.
double letter
Two letters on one shank; a ligature.
double lock standing seam
nounConstruction
A standing seam that uses a double overlapping interlock between two metal panels.
double pica
A large size of type, standardized as (UK) 22- or (US) 24-point.
double small pica
A large size of type, standardized as (UK) 21- or (US) 22-point.
double talk
A situation when two people talk at the same time, causing overlapping audio signals.
double track
nounRail equipment
A section of railway line or tramline consisting of two parallel tracks, one being used in one direction and the other in the opposite direction.
double-acting
adjectiveMechanical engineering
Applying power in two directions.
double-declutch
A method of changing gear in a vehicle which doesn't have synchromesh. The clutch is depressed to disengage the current gear, released while in neutral, and depressed again to obtain the next gear.
double-pointed needle
a knitting needle with points at both ends; used in sets of four or five to knit narrower tubes than possible with a circular needle
doubler
nounMetalworking
A person employed in a roller mill to fold the hot metal plates in half.
doublet
A word or phrase set a second time by mistake.
doubleweight
adjectiveIndustrial printing
Being or relating to a paper of twice the ordinary weight.
dousing-chock
One of several pieces fayed across the apron and lapped in the knightheads.
dovetail
nounWoodworking
In full dovetail joint: a type of joint where adjoining components are fastened by multiple tenons cut into wedge shapes resembling a dove's tail, which interlock with mortises having corresponding shapes.
dovetailed
adjectiveCarpentry
Having a dovetail joint.
dowel
nounConstruction
A piece of wood or similar material fitted into a surface not suitable for fastening so that other pieces may be fastened to it.
down
adverbRail equipment
In the direction leading away from the principal terminus, away from milepost zero.
downcast
A ventilating shaft down which air passes in circulating through a mine.
downconversion
The conversion of a high radio frequency to a lower frequency.
downlead
An electrical cable connecting an outdoor structure to an indoor or in-ground structure.
downlink
The transmission of a signal from a satellite to a receiving station on earth; or the means of this transmission.
downshift
nounAutomotive
A shift of a transmission into a lower gear, as dictated by heavier load on the engine, as for example when climbing a hill or strongly accelerating.
downsizing
nounAutomotive
Reducing engine's capacity at same power or increasing engine's power without increasing capacity.
downsprue
nounMetallurgy
Synonym of sprue (“a channel through which molten metal is poured into the mold during the casting process”).
downstrike
verbConstruction
To point (finish a joint) by pressing mortar in at the bottom.
dozen
nounMetallurgy
An old English measure of ore containing 12 hundredweight.
dozy
adjectiveCarpentry
Decaying, rotten, spongy.
DPCCH
Abbreviation of dedicated physical control channel.
DPCH
Acronym of dedicated physical channel.
DPDCH
Initialism of dedicated physical data channel.
DPLL
Initialism of digital phase-locked loop.
DPN
nounManufacturing
Initialism of double-pointed needle(s).
DPRAM
Initialism of dual-ported RAM.
DPRFP
Initialism of Direct Polar Radio Frequency Power.
draft
nounRail equipment
The pulling force (tension) on couplers and draft gear during a slack (stretched) condition.
drafting
The act or process of drawing water out of a source.
drafting site
A designated location for a firefighter to draw or pump water out of a natural source, such as a lake or river.
drag
nounConstruction
A steel instrument for completing the dressing of soft stone.