reseat
To plug (something) back into its socket.
Entries starting with R
443 entries.
resection
nounSurveying
A method of determining a position by using a map and compass bearings for two additional points.
reseda
Mignonette (Reseda odorata).
reserve
That which is reserved or kept back, as for future use.
reset button
A button that resets something.
resettable fuse
A passive electronic component used to protect against overcurrent faults in circuits.
residual-current device
An automatic circuit breaker that rapidly disconnects an electric circuit when the imbalance of the currents going through it exceeds a specific value.
resistance distance
In classical mechanics, the distance from the resistance (on a lever) to the fulcrum.
resistive
adjectiveIndustrial electronics
Acting as a resistor; resisting the passage of electrical current.
resistivity
The resistance offered at a particular temperature by an electrical conductor of any given material in a cube of unit length, expressed in ohm-metres (Ωm) in the metric system of measurement.
resistor
An electric component that transmits current in direct proportion to the voltage across it.
resmelt
verbMetallurgy
To smelt again; to smelt a second time.
resolvance
The resolving power of a lens or device
resolve
To render visible or distinguishable the parts of something.
resonance
The condition where the inductive and capacitive reactances have equal magnitude.
resonant
adjectiveElectrical engineering
Adjusted as to dimensions so that currents or electric surgings are produced by the passage of electric waves of a given frequency.
response time
The time taken for the display of an instrument to move to a new value following a step change.
responsor
A receiver used in conjunction with an interrogator to receive and interpret signals from a transponder.
respot
nounManufacturing
The final welding on a manufactured item.
restressable
adjectiveConstruction
Capable of being stressed again.
restripe
verbAutomotive
To change the space markings in a parking lot.
restump
verbConstruction
To renew the stumps supporting a house
retaining valve
A device that retains some air pressure in a train's air brake cylinders even when the automatic brake valve is set to the fully-released position, used on steep downgrades to allow a degree of continuous braking effort to be maintained without depleting the pressure in the train's brakepipe (which would result in the loss of nearly all braking ability, causing a runaway).
retardation
A decrease in the speed of telegraph signalling.
retarded time
The time when the field begins to propagate from the point where it is emitted to an observer.
retarder
A device for slowing down large trucks, lorries, buses, shunted railway wagons.
retention line
A future-dated line of text put in to an airline reservation system or GDS to delay the booking being moved to archives.
reticulated
adjectiveConstruction
Constructed with diamond-shaped stones.
retroscopic
adjectiveOptics and imaging
Having a tilt in the opposite direction to a pantoscopic lens
return
A roadway along which foul air travels from the face on its way out of the mine.
return current
The electric current in a circuit which flows back to its source, or to earth.
return flow
Surface or subsurface water that leaves the field following application of irrigation water.
return key
A key on a computer keyboard commonly used to execute a command or confirm the input of keyed text.
return path
The route by which a current or signal returns to its source, or to earth.
return spring
The spring that returns a door handle or knob to its original position when rotated.
return tag
nounRail equipment
A tag attached to a railway car as evidence of its due arrival.
return ticket
A ticket granting permission to travel to a place and return.
REV
nounAutomotive
Initialism of range-extended vehicle or range extender vehicle
rev st st
Abbreviation of reverse stocking stitch; reverse stockinette stitch.
reverberate
To heat something by deflecting flames on to, or passing flames over, it.
reverse
adjectiveRail equipment
To be in the non-default position; to be set for the lesser-used route.
reverse gear
A gear (setting) in a vehicle's transmission which, when selected, makes the vehicle move backward. (Denoted with symbol R on a shifter's labeling.)
reverse intaglio
A design impressed into the back of transparent or translucent items.
reverse link
In radio communications, the link from a mobile user to a fixed base station. If the link includes a communications relay satellite, the reverse link will consist of both an uplink (mobile station to satellite) and a downlink (satellite to base station).
reverse out
To print with reversed colours, i.e. black for white and vice versa.
reverso
Any of the left-hand pages of a book.
revise
A second proof sheet; a proof sheet taken after the first or a subsequent correction.
rework
nounManufacturing
Taking unsaleable food and using it in the manufacture of other food.
RF
Abbreviation of radiance field.
RFC
Initialism of Royal Flying Corps (previous title of the Royal Air Force)
RFD
adjectiveTextile production
Initialism of ready for dyeing.
RFFE
Initialism of radio frequency front end.
RFID
Initialism of radio-frequency identification.
RH
nounManufacturing
Initialism of right hand.
RHD
nounAutomotive
Initialism of right-hand drive.
rheostat
An electrical resistor with two terminals, the resistance of which can be varied continuously by moving a knob or slider to regulate the flow of an electric current.
RHS
nounConstruction
Initialism of rectangular hollow section.
RHU
nounRobotics
Initialism of radioisotope heater unit, a device that generates heat from the natural decay of radioactive material.
rhubarb
Of fighter aircraft: to fire at a target opportunistically.
rib
nounManufacturing
A raised ridge in knitted material or in cloth.