Counter action by a defendant against a plaintiff in a legal action.
Counterclockwise
Movement in the direction opposite of the hands of a clock.
Counterflashing
Substance or material used at the top of a chimney at the roof to inhibit the development of moisture and to protect the metal with one end embedded in the masonry and the other edge overlapping the roof flashing.
Counterflow heat exchanger
A heat exchanger in which two fluids flow in opposite directions for transfer heat energy from one to the other.
Counteroffer
A response to an offer with a revised offer.
Counterpoise
A state of equality between opposing forces.
Counterrotating
Rotating in opposite directions.
Countershaft
Also called a jackshaft, this solid, short round shaft is used for the transmission of power from a motor to a working part.
Countersink
To enlarge a hole in the wood, metal, etc. so that the head of the screw or bolt will fit flush with the surface or below it; to sink the head of a bolt or screw into that hole.
Countersink bit
Conical-shaped cutting edge designed to fit into the adjustable end of a drill (called a Chuck). This bit is used to cut countersinks.
