Also VMG. Actual boat speed after adjusting for such factors as current and leeway.

A device mounted in the vent connector that closes the vent when the heating unit is not firing. This traps heat inside the heating system and house rather than letting it draft up and out the vent system.

Less than Container Load

The lowest temperature that can be obtained on a wet-bulb thermometer in any given sample of air. Obtained by evaporation of water (or ice) from the muslin wick. Used in computing dew point and relative humidity.

Abbreviation for "Not Elsewhere Specified."

A column of burning combustion gases that are so hot and strong that the heat is lost up the chimney before it can be transferred to the house. A draft brings air to the fire to help keep it burning.

A device for converting a solid fuel to a gaseous fuel.

Per Freight Ton

Capacity of a soil or other surface to be penetrated by water sinking into the ground under the force of gravity. It thus expresses the rate of percolation.

Boards used to close the companionway.

That part of snow melt that reaches stream channels as runoff.

An offer to sell goods at a stated price and under stated terms.

A general term used to imply that a part in service (1) has become completely inoperable, (2) is still operable but is incapable of satisfactorily performing its intended function, or (3) has deteriorated seriously, to the point that it has become unrelia ...

Warehouse Withdrawal for Transportation Immediate Exportation.Allows merchandise that has been withdrawn from a bonded warehouse at one U.S. port to be exported from the same port exported without paying duty.

Continuous Refrigeration Survey

Type of order given.

The unit price and quantity to which it applies as specified in a rate schedule or contract.

Difference between the temperatures of the dry-bulb and the wet-bulb thermometers of a psychrometer.

Open Shelter Deck ship.

Name given to the unit of pressure in the International System of Units (SI). Equal to 1 newton/meter2 or 0.01 millibar.