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 board with cleats, forming a bridge reaching from a gangway of a vessel to the wharf.

Numbers of large pieces of floating ice that have come together and lie more or less in contact.

Ship's boat kept ready for immediate lowering while at sea. When used for life-saving, it was called an "accident boat" or lifeboat.

A frame used to support the boom when the sail is down.

To make life onboard for the crew as uncomfortable as possible, by keeping them at work at all hours, often unnecessarily.

A filtering unit for vented enclosures installed to prevent dirt and foreign matter from entering the enclosure. Also prevents oil loss by retaining oil droplets and draining the oil back to the sump.

Business pertaining to commerce or navigation transacted upon the sea or in seaports in such matters as the court of admiralty has jurisdiction.

Water of sufficient depth to allow a boat to travel through it.

Unit of free air flow rate. Normal cubic meter per hour. The air in the following conditions:1.013 bar(a) of pressure; 0 degrees Celsius of temperature and 0% of relative humidity .

A rate applicable from a point on one transportation line to a point on another line, made by agreement and published in a single tariff by all transportation lines over which the rate applies.

The physical or mechanical process of separating insoluble particulate matter from a fluid, such as air or liquid, by passing the fluid through a filter medium that will not allow the particulate to pass through it.

Is the ratio of the thermodynamic work requirement in the cylinder to actual brake horsepower requirement.

Wind coming from the north.

Caught in the ice.

A single block such as a snatch block used as a fairlead to bring a line in a more favorable direction.

Those causes of loss for which the carrier is not legally liable. The elemental risks of ocean transport.

Canvas, wood or rope used over the side to protect a vessel from chafing when alongside another vessel or a dock.

An instrument that measures atmospheric pressure in inches or millibars of mercury

The positioning and shape of the sails to the wind; To sheet in or out the sails for the most optimal performance and speed