The principal sail that is set on the main mast.

A unit of electrical capacitance; the capacitance of a capacitor between the plates of which there appears a difference of 1 Volt when it is charged by one coulomb of electricity.

Air in motion relative to the surface of the earth. Almost exclusively used to denote the horizontal component.

A deduction of either 50% or 100% which is made from the value of land in the UK, Channel Islands or.

See: 'all or.

A building energy auditing technique used to determine and/or locate air leaks in a building shell or envelope.

A charge for the maximum rate at which energy is used during peak hours of a billing period. That part of a utility service charged for on the basis of the possible demand as distinguished from the energy actually consumed.

To untie.

Warehouse Withdrawal for Transportation Immediate Exportation.Allows merchandise that has been withdrawn from a bonded warehouse at one U.S. port to be exported from the same port exported without paying duty.

The course of a vessel after magnetic variation has been considered, but without compensation for magnetic deviation.

Chart Of Account.

A metal air-tight tank built into a boat to insure flotation even when the boat is swamped.

A solid wharf or structure built of stone along the edge of a harbor used for loading and offloading of cargo, and embarkation and disembarkation of passengers.

See 'Government National Mortgage.

Splitting (fracture) of a crystal on a crystallographic plane of' low index.

Passenger Vessel Operator.

A measurement unit defining the purity of gold. Pure gold is 24 carat, whilst 18 carat gold.

An order meaning sufficient (enough).

Kilograms per square centimeter absolute.

A stress that causes an elastic body to deform (shorten) in the direction of the applied load. Contrast with tensile stress.