A small receiver fitted on the inlet or discharge of a reciprocating compressor. The device is designed to remove the resonance from the compressor thereby reducing noise.

A boat selling supplies, provisions, and articles to ships.

A ship owned and armed by a private individual that is empowered by a government to fight with enemy ships and capture enemy shipping in time of war.

A certificate issued by an independent agent or firm attesting to the quality and/or quantity of the merchandise being shipped. Such a certificate is usually required in a letter of credit for commodity shipments.

Long Ton = 1016.05 kilogram

Lines drawn on a weather map indicating regions of equal pressure. When the lines are close together, this indicates a rapid change in air pressure, accompanied by strong winds.

A solid adsorbent used for drying compressed air.

Tassels of unraveled line, yarns, etc. which are lashed around chafe spots such as spreaders to prevent chafe on sails.

A familiar dish at sea before refrigeration was available. It was a stew of salt meat, broken biscuit, potatoes, onions and available spices.

A unit used to measure the barometric pressure of the atmosphere. 1 millibar equals 0.03 inches of mercury.

An inland location where cargo is received by the ocean carrier and then moved to a coastal port for loading.

A type of flag used to identify a boater's affiliation with a yacht club or boating organization.

Slang term for a small swab made of rope and used for drying decks.

A container with no sides and frame members at the front and rear. Container can be loaded from the sides and top.

Metal fitting attached to the hull that supports and aligns the aft portion of the propeller shaft.

Maximum pressure a vessel, or air filter housing will withstand without bursting.

The structure perpendicular to the shoreline to which a vessel is secured for the purpose of loading and unloading cargo.

A chaplain.

Removing cargo from a container (devanning).

Seaman who was born aboard a warship. As this was once considered to be one of the essentials of the perfect seaman, it has long been a complimentary term.