A psychrometer in which the ventilation is provided by a suction fan.

Intermediate Fuel Oil

An elastomeric bellow with specially designed metal end closures used in place of pneumatic or hydraulic cylinders. A device which induces action or motion with compressed air being the medium through which the power is transmitted.

A term used on occasions in life assurance policy documents, which indicates that the assured has.

Vessel Traffic Information System

Charge assessed by a pier or dock owner against freight handled over the pier or dock or against a steamship company using the pier or dock.

Universal Resource Locator

An air pollution control device that removes organic contaminants by oxidizing them into carbon dioxide and water through a chemical reaction using a catalysis, which is a substance that increases (or decreases) the rate of a chemical reaction without bei ...

Motorcar Carrier.

Global Navigational Satellite System

Microorganisms that live in oxygen deprived environments.

A thermometer whose sensitive element has been made to resemble a black body by covering it with lamp black. The thermometer is placed in an evacuated transparent chamber which is maintained at a constant temperature. The instrument responds to insolation ...

Atmosphere normale de reference. The term ANR is not usually applied to cfm, it is the new European replacement for FAD and usually follows the metric measurement of air flow, such as Cu Meters per Minute

Very High Frequency. (30-300 MHz) Designate also the radio communication apparatus using this frequency. It reaches only slightly beyond the horizon, except in favourable circumstances where transmission up to several hundred miles are possible.

A type of disk hardness-gauge, especially useful in relatively soft snow. See disk hardness gauge.

A component on a compressed air line designed to increase in magnitude the flow by releasing small amounts of compressed air at high velocity through an internal, ring shaped nozzle. This column of air released through the front creates a vacuum behind, t ...

Fine dust or salt particles dispersed through a portion of the atmosphere; a type of lithometer. The particles are so small they cannot be felt or seen with the naked eye. Many haze formations are caused by the presence of an abundance of condensation nuc ...

The farthest aft.

Inland Water Service of Goa.

A direct-vision nephoscope which is constructed in the following manner: a comb consisting of a crosspiece containing equispaced vertical rods is attached to one end of a column eight to ten feet long and is supported on a mounting that is free to rotate ...