touchdown
The moment when an aircraft or spacecraft makes first or final contact with the ground during a landing.
Entries starting with T
536 entries.
tower
A metal stand used as a pivot to support a punty at a furnace.
tower ladder
A kind of extensible ladder, usually with a platform or bucket at the top end.
town car
A hired non-stretch limousine, traditionally but not necessarily a standard-wheelbase Lincoln Town Car or Cadillac sedan.
Toyota
nameAutomotive
The Toyota Motor Corporation, a Japanese manufacturer of cars.
TPH
nounRail equipment
Initialism of trains per hour.
TPI
nounAutomotive
Initialism of transfer port injection.
TPM
Initialism of ticket point mileage.
TPMS
nounAutomotive
Initialism of tire pressure monitoring system.
TPU
Initialism of Tensor Processing Unit, a circuit optimized for neural network machine learning.
trace
A current-carrying conductive pathway on a printed circuit board.
track
nounAutomotive
The distance between two opposite wheels on a same axletree.
track brake
A magnetic brake fitted to a rail vehicle, which is pressed against a rail in railway track.
track circuit
nounRail equipment
an electrical circuit in a railway track used for signalling purposes.
track gauge
The specified distance between the rails of a railway.
track pan
nounRail equipment
a long trough placed between the rails in a railroad track, which enabled a steam locomotive to replenish its water supply without stopping by lowering a scoop.
track pizza
A person hit by a train after jumping or falling in front of it.
trackhoe
An excavator (machine) mounted on caterpillar tracks. (Most are large; some are miniature for small jobs.)
tracking
The formation of conductive paths on the surface of an insulating material due to electrical discharges.
tracklayer
nounRail equipment
A workman whose work involves putting the track in place.
trackless
adjectiveRail equipment
Of a train, tram, etc.: not running on tracks.
tracklifting
nounRail equipment
The process of removal of railway track, in particular from a railway line permanently closed to traffic.
tracksuit
nounManufacturing
A garment, usually consisting of a top and trousers (commonly known as tracksuit bottoms) worn as an outer layer by participants in sporting events such as athletics. The tracksuit is usually designed to be easily removed or replaced, before or after competing. Tracksuits have also been adopted in some cultures as leisurewear.
traction
Collectively, the locomotives of a railroad, especially electric locomotives.
traction motor
An electric motor used for the propulsion of a vehicle, such as a tram, trolleybus, electric or diesel-electric locomotive or train.
tractor
A vehicle used in farms e.g. for pulling farm equipment and preparing the fields.
trade
Refuse or rubbish from a mine.
traductor
nounRail equipment
A long arm that is used to suspend a bag to be dropped onto a passing train and which retracts automatically be means of a spring when the bag is dropped.
traffic beam
A headlight setting intended for roads with traffic on them at night.
traffic code
nounAutomotive
The laws governing the use of roads by vehicles.
traffic island
A raised or otherwise marked area in a roadway from which traffic is excluded, so as to direct the traffic flow and provide a safe place for pedestrians to wait while crossing the road.
traffic jam
A situation in which road traffic accumulates until it is stationary or very slow.
traffic mile
nounRail equipment
Any unit of the total obtained by adding the passenger miles and ton miles in a railroad's transportation for a given period.
traffic stop
nounAutomotive
A temporary detention of a driver of a vehicle and its occupants by police to investigate a possible crime or a minor violation of the law.
trafficator
nounAutomotive
A blinking light on a motor vehicle that indicates the direction in which it is about to turn.
trailable
adjectiveRail equipment
Of a system of points: arranged so that the train may run through them in a trailing direction, even if it is not set for that route.
trailing
adjectiveRail equipment
That converge in the direction of travel.
trailing edge
The rearmost edge of a wing or other airfoil.
trailing wheel
nounRail equipment
On a steam locomotive, an unpowered wheel or axle located behind the driving wheels.
train
To trace (a lode or any mineral appearance) to its head.
train ferry
nounRail equipment
A ferry used to transport rail vehicles from one railway line to another across a stretch of water.
train mile
A unit used in estimating railway running expenses, etc.: the total number of miles run by all the trains of a railroad, or system of railroads, as within a given time, or for a given expenditure.
train order
nounRail equipment
Formerly, a telegraphed or written instruction issued by a dispatcher to train crews and other railroad employees, concerning changes in operation of a particular train.
train pipe
A brake pipe on a rail vehicle through which compressed air or vacuum is passed to operate the brakes throughout a train.
train stop
A train protection device that automatically stops a train if it attempts to pass a signal when the signal aspect and operating rules prohibit such movement, or (in some applications) if it attempts to pass at an excessive speed.
trainagraph
nounRail equipment
An instrument for recording the pressures in a train's braking system.
trainer
A device for encouraging the roots of a plant to grow in a certain direction.
trainload
nounRail equipment
The amount that can be transported by a train.
trainman
nounRail equipment
A person who works on trains on a railway / railroad.
trainmaster
nounRail equipment
A superintendent or supervisor of a freight railroad, responsible for train movements, crew assignments, derailments and more.
trajectory
The path of a body as it travels through space.
tram
nounManufacturing
A silk thread formed of two or more threads twisted together, used especially for the weft, or cross threads, of the best quality of velvets and silk goods.
tramble
To wash (tin ore, etc.) with a shovel in a frame fitted for the purpose.
tramline
nounRail equipment
The rails that a tram runs on.
tramp trade
The commercial activity of a tramp steamer.
tramper
nounManufacturing
A mechanism which pounds material into a more compact form for further processing; found for example in cotton gins and trash processors.
tranny
A vehicle's transmission.
transconductance
The ratio of the change in output current to the change in input voltage across a circuit
transfer
To exit one mass transit vehicle and board another (typically one belonging to a different line or mode of transportation) to continue a journey.
transfer window
A period of time during which a spacecraft orbiting one celestial body can travel to a different body and enter orbit around it without excessive expenditure of fuel or reaction mass.