On wooden vessels, the frames or ribs of a ship, connected to the keel, which give shape and strength to the ship's hull.

Placed at right angles to the keel, such as a transverse frame, transverse bulkhead, etc.

A heat exchanger in which two fluids flow in opposite directions for transfer heat energy from one to the other.

A popular term used for an evaporative cooling device.

When an option holder takes up his option to buy or sell the underlying instrument (for example.

An income tax coding allocated to people who pay tax at the higher rate.

The forward end of a ship's after superstructure, where the poop deck descends to the upper deck.

Sailor slang for marriage.

Small charts showing tidal stream directions and rate of flow.

A knot used to form a knob in the end of a line to prevent the end from running through a block or other narrow space.

A single photovoltaic device.

The period marked by successive crossing of the earth's meridian by the sun; the hour angle of the sun at a point of observance (apparent time) is corrected to true (solar) time by taking into account the variation in the earth's orbit and rate of rotatio ...

Term used in a voyage charter party, e.g. vessel shall proceed to Berth 2 at Falmouth.

An endowment policy in which the savings element is significantly.

Same as geostrophic wind level.

An occasional sprinkling dashed from the top of a wave by the wind, or by its striking an object.

Is the temperature at which water vapor begins to condense at atmospheric pressure. Is the same as dew point, but is related to atmospheric air only.

To lower, sink deeper.

A type of furnace in which fuel is burned and the heat is used to produce steam.

A valve designed to prevent air volume and pressure from escaping the compressor tank back into compressor heads while compressor is not operating.