See radiation shield.

A reference book named after the original author, Nathaniel Bowditch. Updated versions contain tables and other information useful for navigation.

A line used to control the tension along a sail's luff in order to maintain proper sail shape.

To stow or secure in a safe place. A top-mast is housed by lowering it and securing it to a lowermast.

A business firm which sells its services to organizations which operate vessels

Observing with the eye. Applied to a document, means examining and signing as evidence of satisfaction as to its authenticity.

A form requiring all data in a commercial invoice along with a certificate of value and/or a certificate of origin. Required in a few countries (usually former British territories) and usually serves as a seller's commercial invoice.

Is a process taking place without any heat exchange with the surroundings.

A type of automatic thermostat (used on solar heating systems) that responds to temperature differences (between collectors and the storage components) so as to regulate the functioning of appliances (to switch transfer fluid pumps on and off).

A term applied to the gas found on the high pressure side of the refrigeration system.

A device designed to enable accumulated liquids to be held for draining in a compressed air system.

A small boat designed to be rowed by use of its oars. Some dinghies are rowboats.

The amount of money which an individual has available to spend on inessential items after essential.

Same as evaporative power.

Apparatus designed to measure the amount of precipitation falling in the form of snow. The device determines the weight of the snow or the volume of water after the snow melts.

The state of a vessel when she is so loosened as to droop at each end.

Loaded containers moving within the railroad system that are not clearly identified on any internally generated reports.

The study of the earth's waters.

Strips of material used to separate multiple panes of glass within the windows.

The total pressure measured from absolute zero ( i.e., from an absolute vacuum).