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Entries starting with C

768 entries.

counterflashing

Formed metal or elastomeric sheeting secured on or into a wall, curb, pipe or other surface, to cover and protect the upper edge of a base flashing and its associated fasteners.

counterlath

One of many laths used in preparing one side of a partition or framed wall, when the other side has been covered in and finished.

country rock

Rock that surrounds reefs or lodes of mined minerals, forming the walls and floors of quarries, or through which mine tunnels are driven.

coupe

A car with two doors and a nonconvertible roof. (variant of coupé)

coupling rod

A rod that couples the driving wheels of a locomotive, a steam locomotive in particular, so that the driving wheels act together as a unit.

coupon

A small sample of a bulk material, prepared so that test failure will be representative.

courtesy light

A small light inside a motor vehicle that automatically switches on when a door is opened.

cover

The distance between reinforcing steel and the exterior of concrete.

cover board

An insulation board used over closed cell plastic insulation (e.g., polyisocyanurate) to prevent blistering when used in conjunction with hot bituminous membranes.

cowcatcher

A plough-shaped device affixed to the front of a locomotive (or other large vehicle), usually wedge or V-shaped so as to push or deflect objects on the tracks out of the way, to clear out the train's path and prevent the risk of derailment or major damage to it.

CPO

Initialism of certified pre-owned Referring to a used car asserted to be in good condition whose warranty (from the seller, manufacturer, or insurer) is asserted to be extensive.

CQV

Initialism of commissioning, qualification, and validation

crab

To navigate (an aircraft, e.g. a glider) sideways against an air current in order to maintain a straight-line course.

cracking

The thermal decomposition of a substance, especially that of crude petroleum in order to produce petrol / gasoline.

cradle

A ribbing for vaulted ceilings and arches intended to be covered with plaster.

cradling

The framework in arched or coved ceilings to which the laths are nailed.

craft

Boats, especially of smaller size than ships. Historically primarily applied to vessels engaged in loading or unloading of other vessels, as lighters, hoys, and barges.

cram

A warp having more than two threads passing through each dent or split of the reed.

crank axle

An axle formed in the manner of a crankshaft in an internal-combustion engine, having one or two cranked sections driven from one or two cylinders inside the main frames.

crankwalk

The condition of having excessive play in the crankshaft alignment, letting it drift back and forth, allowing off-alignment interaction with the rest of the engine.

crash box

A structural component near the bumper, serving to absorb energy in a collision.

crawler lane

On a highway, a slow lane on an uphill incline that is designated for slow-moving traffic such as heavy goods vehicles.

craze

A crack in the glaze or enamel caused by exposure of the pottery to great or irregular heat.

creel

A bar or set of bars with skewers for holding paying-off bobbins, as in the roving machine, throstle, and mule.

creep

A barrier with small openings used to keep large animals out while allowing smaller animals to pass through.

cricket

An aural warning sound consisting of a continuously-repeating chime, designed to be difficult for pilots to ignore.