The notification to a client by a brokerage house that more funds are required to bring a margin.

A federal government agency involved in rural development, marketing and regulatory programs, food safety, research, education and economics, food, nutrition and consumer service, farm and foreign agricultural services, and natural resources and environme ...

Speed Over Ground, speed relative to bottom.

One of the relatively scarce and valuable metals: gold, silver, and the platinum-group metals. Also called noble metal(s).

Determined by weighing a special type of wooden stick that has been exposed in the woods, its weight being proportional to its contained water.

A line drawn through geographical points having the same pluvial index.

The change in barometric pressure within a specified period of time (typically 3 hours for meteorological observations).

The energy liberated in a chemical reaction, as in the combustion of fuels.

The government department responsible to the Treasury for the collection of direct taxes which.

The component of either a liquid or solid solution that is present to a lesser or minor extent: the component that is dissolved in thesolution.

Radiation coming from the solid angle of the sun's disc, as opposed to diffuse sky radiation, effective terrestrial radiation, or radiation from any other source. Direct solar radiation is measured by pyrheliometers.

check chamber-A chamber use to check the sensing elements of radiosonde equipment.

Safe Port

The sum of the sensible and latent heat in a substance or fluid above a base point, usually 32 degrees Fahrenheit.

A knot used to temporarily shorten a line.

A cracking process that requires the simultaneous action of a corrodent and sustained tensile stress. This excludes corrosion-reduced sections that fail by fast fracture. It also excludes intercrystalline or transcrystalline corrosion, which can disintegr ...

On or near the line of immersion of a ship's hull.

High Speed Passenger.

In reference to a wind energy conversion device, the area through which the rotor blades spin, as seen when directly facing the center of the rotor blades.

Invisible waves in the electromagnetic spectrum that are used to communicate (radio) - and navigate (radar).