DCT
nounAutomotive
Initialism of dual clutch transmission.
Entries starting with D
483 entries.
DD
nounAutomotive
Initialism of daily driver: a vehicle which is used for everyday commuting, unlike a weekend warrior / Sunday Funday vehicle.
DDD
Initialism of direct distance dialing (“network-provided service that enables non-local telephone calls to be made without operator assistance”).
DDI
Initialism of direct dial-in.
DDR
Initialism of double data rate.
DDS
Initialism of direct digital synthesis.
de-electrify
verbRail equipment
To remove the electrification for powering electric trains from a railway.
de-emphasis
A signal distortion, carried out at a receiver, in order to undo the effects of pre-emphasis at the transmitter.
dead air
Air that is subject to little or no ventilation, thus, little to no air exchange.
dead door
nounManufacturing
A storm shutter fitted to the outside of the quarter-gallery door.
dead end
The inner end of a drift or tunnel.
dead furrow
A furrow left in the field that is slightly wider than twice the width of a plow bottom, usually occurring at the completion of a field.
dead ground
the portion of a vein in which there is no ore
dead in the train
adjectiveRail equipment
Being hauled as part of a train's consist while not providing any motive power.
dead load
nounConstruction
The weight of a structure itself, including the weight of fixtures or equipment permanently attached to it.
dead man's handle
A lever used as a safety device, typically on trains, which shuts off power if the operator releases their grip.
dead section
nounRail equipment
Part of a neutral section.
dead stand
A stand of trees that have died.
dead weight
nounRail equipment
The total (unpowered) weight of a train to be propelled (or hauled) by the locomotive; another locomotive being hauled dead as part of the train is a dead weight.
dead zone
A region where mobile phones do not operate because there is no base station or repeater nearby.
dead-air space
nounConstruction
A sealed airspace in a cavity wall.
dead-bug
Relating to a form of electronic prototyping where integrated circuits are stuck upside down to the breadboard and soldered to directly.
deadband
Backlash in a mechanical system.
deadhead
(transitive) To remove spent or dead blossoms from a plant.
deadleg
A vehicle that is traveling on a leg of its route in which it does not carry any cargo.
deadman
nounConstruction
A long object, often a timber or log, buried to serve as an anchor for a wall or for stays.
deadmelt
verbMetallurgy
To melt steel at high temperatures in order to deoxidize it.
deads
The substances that enclose the ore on every side.
deadstick landing
A forced landing without propulsion of an aircraft that normally operates with propulsion.
debark
To remove the bark from a tree, especially one that has been felled.
debind
verbMetallurgy
To remove binders (organic or other binding substances) from (something metal).
debinder
nounMetallurgy
a tool for debinding
debismuthization
nounMetallurgy
The removal of bismuth from lead during refining.
debounce
To remove the small ripple of current that forms when a mechanical switch is pushed in an electrical circuit and makes a series of short contacts.
debug
To remove a hidden electronic surveillance device from (somewhere).
dec
verbManufacturing
Abbreviation of decrease.
decaampere
An SI unit of current equal to 10¹ amperes. Symbol: daA
decade
A set of resistors, capacitors, etc. connected so as to provide even increments between one and ten times a base electrical resistance.
decade box
A piece of test equipment used during prototyping of circuits to vary the resistance, capacitance, or inductance by means of a knob or switch.
decade counter
A counter that counts in decimal digits, rather than in binary.
decagram
An SI unit of mass equal to 10¹ grams. Symbol: dag
decakatal
An SI unit of catalytic activity equal to 10¹ katals. Symbol: da
decametre
An SI unit of length equal to 10¹ metres. Symbol: dam
decapod
nounRail equipment
A nickname for either the 0-10-0 or 2-10-0 train configurations.
decasecond
An SI unit of time equal to 10¹ seconds. Symbol: das
decay
Loss of airspeed due to drag.
decentre
To place away from the centre; to make eccentric.
deciamp
An SI unit of electrical current equal to 10⁻¹ amps. Symbol: d
deciampere
An SI unit of electrical current equal to 10⁻¹ amperes. Symbol: dA
decigram
An SI unit of mass equal to 10⁻¹ grams. Symbol: dg
decikatal
An SI unit of catalytic activity equal to 10⁻¹ katals. Symbol: d
decilitre
An SI unit of fluid equal to 10⁻¹ liters. Symbol: dl.
decimetre
An SI unit of length equal to 10⁻¹ metres. Symbol: dm
decisecond
An SI unit of time equal to 10⁻¹ seconds. Symbol: ds
deck over
verbManufacturing
To complete the upper deck of a vessel.
decollimation
Any mechanism in which rays either diverge or converge from parallelism
decrease
nounManufacturing
A reduction in the number of stitches, usually accomplished by suspending the stitch to be decreased from another existing stitch or by knitting it together with another stitch. See Decrease (knitting).
DECT
Initialism of Digital Enhanced Cordless Telecommunications (a standard originated in Europe that is primarily used for creating cordless phone systems).
DEF
nounAutomotive
Abbreviation of diesel exhaust fluid.
default
the original software programming settings as set by the factory