centiampere
An SI unit of electric current equal to 10⁻² amperes. Symbol: cA
Entries starting with C
486 entries.
centigram
An SI unit of mass equal to 10⁻² grams. Symbol: cg
centikatal
An SI unit of catalytic activity equal to 10⁻² katals. Symbol: c
centimetre
An SI unit of length equal to 10⁻² metres. Symbol: cm
centimole
An SI unit of amount of substance equal to 10⁻² moles. Symbol: cmol
centisecond
An SI unit of time equal to 10⁻² seconds. Symbol: cs
centralised traffic control
nounRail equipment
A form of railway signalling that does away with intermediate signallers over a long stretch of track, often single track with loops where trains can pass each other, by remote control from one location.
cess path
nounRail equipment
Path running along the cess next to a railway line.
CF
Initialism of center front, a line on a pattern marking the center on the front side of a piece of clothing.
CFD
Initialism of Computational Fluid Dynamics.
chaff cutter
A machine for cutting straw or hay into chaff.
chain
nounSurveying
A series of interconnected links of known length, used as a measuring device.
chain drill
A drilling tool that is driven by a rotating chain with attached drill bits or teeth to bore holes.
chain drive
transmission system in which power is transferred to the wheels (for example), by means of a chain.
chain-driven
adjectiveMechanical engineering
Referring to the transmission of power by means of a suitable endless chain, such as a bicycle chain.
chainage
nounSurveying
An imaginary line used to measure distance, often corresponding to the centre of a straight road.
chainwork
The technique of surveying by measuring distances with a chain.
chair
nounRail equipment
A cast-iron component used on railways to support bullhead rails and secure them to the sleepers.
chair car
A railway car equipped with reclining armchairs, for passengers travelling at night who do not wish to ride in a sleeping car.
channel
A structural member with a cross section shaped like a squared-off letter C.
channeled
Of a vehicle: having the height reduced by lowering the body with respect to the frame rails.
charactron
A form of cathode ray tube used to display letters and other characters
charged particle
Any particle, especially a subatomic particle, that carries an electric charge.
charging point
nounAutomotive
A facility provided for the purpose of charging / recharging batteries of electric vehicles.
chartermaster
A contractor for working a pit or part of a pit.
chase
A rectangular steel or iron frame into which pages or columns of type are locked for printing or plate-making.
chattering damsel
A component of a traditional mill which creates a vibratory motion to impel portions of grain toward the millstone.
chattermark
nounMachining
An irregularity on a workpiece, caused by vibration.
check
nounManufacturing
A pattern made up of a grid of squares of alternating colors; a checkered pattern.
check rail
nounRail equipment
A rail laid parallel to a running rail to guide wheels through points, rail crossings, and round curves, to reduce wear and the risk of derailments such as those due to flange climb.
check viewer
A viewer employed by the lessor to see that the provisions of the lease are duly observed.
check weigher
A person employed by the miners to check the weight of the mined material and thus ensure the proper wages were paid.
checkweigh
To check the weight of the mined material and thus ensure the proper wages are paid.
cheek
nounMetalworking
The middle section of a flask, made so that it can be moved laterally, to permit the removal of the pattern from the mould.
cheeser
A small spool that is used in the finishing stage of yarn-making.
Chelsea chop
The practice of pruning herbaceous plants around the end of May.
chemical engine
A large cart-mounted fire extinguisher using caustic chemical-extinguishing chemicals.
chicken bit
A bit on a chip that can be used to disable one of the features of the chip if it proves faulty or negatively impacts performance.
child lock
nounAutomotive
A type of special-purpose lock that when activated, prevents rearseat passengers from opening the doors from the inside.
chill
verbMetallurgy
To harden a metal surface by sudden cooling.
chimney flashing
nounConstruction
A strip of material around the base of a chimney, traditionally lead and sometimes including a short length of flue, that prevents rainwater from entering a building.
China girl
Name given to cultivars of various tree, shrub and plant species, including dogwood, holly, orchids, etc.
chiné
adjectiveManufacturing
Mottled in appearance, from the warp being dyed in different colours, or from threads of different colours twisted together.
chip
A hybrid device mounted in a substrate, containing electronic circuitry and miniaturised mechanical, chemical or biochemical devices.
chipless
adjectiveMachining
That cuts or forms a material without producing chips.
chiplet
Any of the integrated circuits making up a multi-chip module (MCM).
chokedamp
A damp consisting chiefly of carbon dioxide, so called for its ability to asphyxiate.
chop and drop
The practice of removing plants by cutting them down to the soil level, without removing the roots.
chopped
Having a vehicle's height reduced by horizontal trimming of the roofline.
chopper
Any of various electronic switches used to interrupt one signal under the control of another.
chuck
A mechanical device that holds an object firmly in place, for example holding a drill bit in a high-speed rotating drill or grinder.
chugger
A heavy-duty locomotive whether electric, diesel, hybrid or steam-powered
church crown
A decorative hat worn by women in the Southern United States as a headcovering during church services.
church text
A tall, thin form of black-letter print.
Chvorinov's rule
nameMetallurgy
An empirical formula used to calculate the solidification time of cast metal. The rule states that t=B(V/A)ⁿ, where t is the solidification time, B is a constant whose value depends on the material properties of the cast metal, V is the volume of the cast, A is the surface area of the cast that contacts the mold, and n is a constant that is usually around 1.5 to 2.
CID
nounAutomotive
Initialism of cubic inches displacement; cubic inches of displacement.
circuit
Enclosed path of an electric current, usually designed for a certain function.
circuit board
A board on which electronic components and their interconnecting circuits are mounted or etched.
circuit breaker
An electrical switch capable of opening and closing an electrical circuit in all operating conditions, including fault situations.
circuit diagram
A schematic representation of electrical connections.