Place where a ship should report when passing i.e. when approaching a port.

Diesel Oil

An assurance policy on the life of an individual where weekly or monthly premiums are regularly paid.

This is a trading term between buyer and seller where a seller agrees to deliver goods to a buyer before a payment is made and without any form of guarantee of payment.

A precipitation gauge consisting of a receiver in the shape of a funnel which empties into a bucket mounted upon a weighing mechanism. The weight of the catch is recorded as inches of precipitation.

Stout line or cable fore and aft around the deck of the boat to keep crew from falling overboard.

Dihydrogen oxide, molecular formula H2O.

An instrument designed to record the duration of sunshine at a given location without regard to intensity. See Campbell- Stokes recorder, Jordan sunshine recorder, Marvin sunshine recorder, Pers sunshine recorder.

A pole used to assist in raising a tower.

Balance of the water resources of a region, comparing precipitation and inflow with outflow, evaporation, and accumulation.

The ability of a non-water-soluble fluid to form an emulsion with water.

To turn the boat away from the wind. also Fall Off.

Maintaining position over the ground when underway in a river or tidal stream.

Telecommunication Relay Float.

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.

Power as calculated from compressor-indicator diagrams.

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

The process of characterizing the wind resource, and its energy potential, for a specific site or geographical area.

Any one of a family of circular arcs consisting of concentric colored bands, arranged from red on the inside to blue on the outside, which may be seen on a "sheet" of water drops (rain, fog, spray). The most common of the many possible is the primary rain ...

Magnetic variation. The difference, east or west, between magnetic north and true north, measured as an angle. Magnetic variation varies in different geographic locations.