An officer taking his turn as officer of the watch.

Dangerously steep and breaking seas due to opposing currents and wind in a shallow area.

An empty wine bottle after its contents have been drunk.

Sailor's phrase for a seaman who has died.

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

The drying of compressed gases other than air. Equipment size, choice of materials and other specifications may be decidedly different for drying gases other than air because of the specific properties of the gases. Properties include specific gravity, sp ...

A double block where the two sheaves lie in a plane one below the other, rather than alongside each other.

A volume. Pounds per hour.

Measuring point for compressor acceptance test. Pressure at the point of use.

To attach a line to something so that it will not move.

A general handyman in the engine room.

To cause the land to sink below horizon by sailing away from it.

The conversion of mechanical, electrical or magnetic energy into heat.

Abbreviation for "Please Authorize Delivery Against Guarantee." A request from the consignee to the shipper to allow the carrier or agent to release cargo against a guarantee, either bank or personal. Made when the consignee is unable to produce original ...

Gossip, usually about other people or events. The term scuttlebutt evolved from the name of a keg containing water and alcohol that sailors used to gather about before meals.

A line attached to the boom to prevent it from accidentally gybing.

A document, issued by a bank per instructions by a buyer of goods, authorizing the seller to draw a specified sum of money under specified terms, usually the receipt by the bank of certain documents within a given time. Some of the specific descriptions a ...

The command given to inform the crew that the helm is being turned quickly to leeward, turning the boat windward

Change from a run to a reach

A fitting holding a boom or gaff to the mast.