A framing of metal fitted over an opening in a deck, with glass or plexiglass inserted for the admission of light into a cabin, engine room, etc.

Category of bulk carrier 100.000-180.00DWT so called she is too large to pass Suez and Panama Canals.

Atmosphere

An instrument designed to detect the ultrasonic emissions and convert them to audible signal.

A heavy colorless gas that does not support combustion but is formed by the combustion and decomposition of organic substances. Found in some ambient air conditions.

The part of the upper deck which is abaft the mainmast, or in that general location of a ship without one. The quarterdeck was normally reserved for officers.

A semi great circle joining the north and south poles. Known as lines of longitude, they cross the equator and all parallels of latitude at right angles.

To deliberately put a sailor ashore and leave him there while the ship sails away.

A wedge-shaped piece of timber used to secure barrels against movement.

Foaming water that rises upward immediately before stem of any craft being propelled through water.

Ability of a filter to remove particle matter from an air stream. Measured by comparing concentrate of material upstream and downstream of the filter. Typical particulate sizes range from .3 micron to 50 micron.

Same as 0.4535924277 kilograms.

Landfall. To reach shore.

Tank,one of which is situated at each side of the top part of the hold of a bulk carrier.

A system by which an object such as a compass is suspended so that it remains horizontal as the boat heels.

Inlet and outlet connections are located at the same level on opposite sides of the filter or other device installed on the pipeline.

Cargo to/from regional ports are transferred to/from a central hub port for a long-haul ocean voyage.

Industry-related: A point at which freight moving from one territory to another is interchanged between transportation lines.

A bun-shaped cover placed over a radar scanner to prevent risk of fouling and to protect it from the weather.