A type of rain gauge shield consisting of freely hanging, evenly spaced slats arranged circularly around the gauge. The advantage of this shield is that the slats do not easily accumulate snow, permitting its use on unattended gauges. See rain gauge shiel ...

A counterclockwise change in wind direction. Backing winds with height are indicative of cold air advection (CAA).

A passive or mechanical device used to ventilate an attic space, primarily to reduce heat buildup and moisture condensation.

Two metals of different coefficients of expansion welded together so that the piece will bend in one direction when heated, and in the other when cooled, and can be used to open or close electrical circuits, as in thermostats.

Said of a rope when it is under such tension that it is practically rigid.

Coast Guard's Automated Mutual-Assistance Vessel Rescue System

Belgian ShipMaster's Association Professional Association for shipmasters legally recognized by decision of the Belgian Council of State of 29th November 1977. Main international objective: safety of shipping & promotion of the profession. Practically BES ...

An additional personal allowance and additional married couple's allowance for people aged 65 to 74.

A notice sent to a local or foreign buyer advising that shipment has gone forward and containing details of packing, routing, etc. A copy of the invoice is often enclosed and, if desired, a copy of the bill of lading.

A special form of the aspiration psychrometer. developed by Assmann, in which the thermometric elements are well shielded from radiation. Psychrometric measurements may be taken with the instrument in the presence of direct solar radiation.

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

Merchant Marine Personnel Advisory Committee

A type of radiant heating system where the radiator is located along an exterior wall where the wall meets the floor.

Governing International Fisheries Agreements

An instrument for rapidly obtaining samples of airborne dust; a type of dust counter. Particles pass through a cylindrical chamber, are drawn at high velocity through a narrow slit, and then impinge upon a microscope cover glass located a short distance f ...

Retention of property until outstanding dept is paid

The water that is forced into a boiler to take the place of that which is evaporated in the generation of steam.

The transfer of ownership of an item from one person to another. The 'item' may be tangible or.

Medium earth orbit (satellite configuration)

Boards fixed vertically to a boat to prevent leeway