random
The direction of a rake-vein.
Entries starting with R
443 entries.
random access memory
Computer memory, usually volatile, that stores program and data values during operation and in which each word of memory may be directly (randomly) accessed.
range anxiety
nounAutomotive
The fear that a vehicle (especially a battery electric vehicle) has insufficient range to reach its destination and will therefore strand its occupants.
range extender
nounAutomotive
A fuel-based auxiliary power unit that extends the range of a battery electric vehicle by driving an electric generator that charges the vehicle's battery.
range out
verbSurveying
To mark intermediate points between two survey stations.
rap
verbMetalworking
To free (a pattern) in a mould by light blows on the pattern, so as to facilitate its removal.
rape culture
The cultivation (growing or production) of rape.
rapper
A swinging knocker for making signals at the mouth of a shaft.
raster
A scanning pattern of parallel lines that form the display of an image projected on a cathode-ray tube of a television set or display screen.
rat
A place in the sea with rapid currents and crags where a ship is likely to be torn apart in stormy weather.
rat-tail splice
A simple method of joining two ends of metal wire by twisting them together.
rate
A class into which ships were assigned based on condition, size etc.; by extension, rank.
ratioless
adjectiveIndustrial electronics
Not based on the relative sizes of components in a circuit.
ratiometric
adjectiveIndustrial electronics
Describing any system in which an output is directly proportional to an input
rattler
nounRail equipment
A freight train or, (chiefly UK), a passenger train.
Rayleigh's resolution limit
The minimum angular separation between two point sources that an optical system can resolve, limited by diffraction.
RBSP
Initialism of Radiation Belt Storm Probes, a spacecraft for NASAs LWS program.
RBW
Abbreviation of resolution bandwidth.
RCP
Initialism of reinforced concrete pipe.
RE
nameRail equipment
The station code of Rewari Junction railway station in India.
re-entry
The return of a spacecraft into the Earth's atmosphere.
re-tractioning
nounRail equipment
Renewal of traction equipment, in particular traction motors.
reactive
adjectiveIndustrial electronics
Characterized by induction or capacitance rather than resistance.
reactor
An electrical component with reactance
read
verbRail equipment
To observe and comprehend (a displayed signal).
readerboard
A LED-based sign used, for example, to display performance information in a call center.
real image
The image formed by light rays converging from a convex lens or concave mirror
reamage
An amount of paper measured in reams.
reaper-binder
A type of harvester for grain crops that combines a reaper with a binder; it is now largely obsolete because combine harvesters have largely replaced it, but it remains in use in certain situations and communities in which it remains practically useful.
rear-end
verbAutomotive
Of a vehicle, to strike (another vehicle) from behind.
reballing
The process of reapplying the balls (protruding contacts) on a ball grid array.
rebarred
adjectiveConstruction
Supported with steel reinforcing bars.
rebat
To perform a rebatment; to rotate one orthographic view into the plane of another orthographic view along the line of intersection between the two planes.
rebeam
verbManufacturing
To transfer (material) from one beam to another by winding.
rebirthing
The practice of transferring identifying parts of a wrecked car (registration plates, compliance plate, etc.) onto a stolen car of the same make and model, allowing the stolen car to be sold with the identity of the wreck.
rebore
nounAutomotive
The process of modifying the bore of an engine.
receive
To detect a signal from a transmitter.
RECEO
Abbreviation of rescue, exposures, containment/confine/confinement, extinguish, overhaul.
receptacle
A contact device installed at an outlet for the connection of an attachment plug (typically by receiving the plug's prongs) to supply portable appliances or equipment.
reception
The act or ability to receive radio or similar signals.
reconductor
To replace the cable or wire on an electric circuit, typically a high-voltage transmission line, usually to afford a greater electric-current-carrying capability.
recover
verbConstruction
To add a new roof membrane or steep-slope covering over an existing one.
recovery
The extraction of an ore from a mine, or of a metal from an ore
recrystallization
nounMetallurgy
The growth of grain fragments in an alloy, especially when it is worked by cold rolling.
rectify
To convert (alternating current) into direct current.
recto
The right-hand page of a book of a script which reads from left to right, usually having an odd page number.
red card
A card indicating a firefighter's qualifications and specialties.
red flag
nounRail equipment
A flag formerly used by a railway guard to warn the driver not to start the train.
red hydrogen
hydrogen produced by using the waste heat from nuclear reactors to power high-temperature catalytic splitting
red light camera
nounAutomotive
An automatic traffic light enforcement camera which captures images of vehicles violating red lights.
red liquor
A solution consisting essentially of aluminium acetate, used as a mordant in the fixation of dyestuffs on vegetable fiber.
red rot
nounMetallurgy
The chemical dezincification of brass alloys, where the zinc in the brass leaches out and leaves behind fragile or powdery copper metal.
redcap
nounRail equipment
A porter in a US railway station.
redline
verbAutomotive
To run an internal combustion engine to its maximum or maximum recommended speed.
redsear
To break or crack through brittleness when red-hot; to be red-short or hot-short.
reduce
verbMetallurgy
To produce metal from ore by removing nonmetallic elements in a smelter.
reducer
nounHydraulics
A hydraulic device for reducing pressure and hence increasing movement, used to transmit the load from the hydraulic support of the lower shackle to the lever weighing apparatus in some kinds of heavy testing machine.
reduction
nounMetalworking
The ratio of a material's change in thickness compared to its thickness prior to forging and/or rolling.
reduction drive
A device which reduces the input rotational speed to a lower output speed, and can also increase torque.
reductive
adjectiveMetallurgy
That reduces a substance etc. to a more simple or basic form.