The net south-facing glazing area projected on a vertical plane. Also, the solid area covered at any instant by a wind turbine's blades from the perspective of the direction of the windstream (as opposed to the swept area).

The relative humidity of a gas (or air) vapor mixture is the ratio of the partial pressure of the vapor to the vapor saturation pressure at the dry bulb temperature of the mixture.

Polytetrafluorethylene.

A device which converts energy from one form into another, i.e. an ac generator transducer which converts the mechanical motion of anemometer cups into an electrical signal.

Wind-bound. When a vessel is kept in port by a head wind.

A bridge that can be raised vertically to allow boats to pass underneath.

A steamship. A ship propelled by a steam engine.

Material passed into the effluent stream composed of foreign materials incorporated into the filter medium.

The space between a hanging ceiling and the floor above or roof; usually contains HVAC ducts, electrical wiring, fire suppression system piping, etc.

Abbreviation for "Trailer Load."

(1) The points of the jaws of a boom or gaff where they embrace the mast. (2) The outer ends of the crosstrees.

Seaman who was born aboard a warship. As this was once considered to be one of the essentials of the perfect seaman, it has long been a complimentary term.

Cargo-securing devices mounted in the floor of containers; allow lashing and securing of cargo.

A measure of the quality of a light source by expressing the color appearance correlated with a black body.

A forward pricing sales arrangement in which the cash price is determined, either by the buyer or.

A person appointed in a will to ensure that the wishes of the deceased are duly carried.

A company (or person) making an unwanted counter bid for another company, whose intentions are.

Before any deductions, particularly tax.

all material and energy present in and around an operating system, such as dust, air moisture, chemicals, and thermal energy.

Long-range navigation system that uses radio signals transmitted at specific times. An onboard receiver computes position by measuring the difference in time of signal reception. This system is being phased out in favor of GPS.