Ratio of the pressure of a gas to its critical pressure, in like units.

A mop, formed of old rope, used for cleaning and drying decks.

A line or wire from the mast to the bow or stern of a ship, for support of the mast; rigging used to support the mast from forward or aft.

To spin out of control and capsize or nearly capsize; The turning of a boat broadside to the wind or waves, subjecting it to possible capsizing; a turning or swinging of the boat that puts the beam of the boat against the waves, creating a danger of swamp ...

On the land or aground.

To put a narrow piece of canvas around it after it has been wormed, and before it has been served.

A logistical management system which integrates the sequence of activities from delivery of raw materials to the manufacturer through to delivery of the finished product to the customer into measurable components. "Just in Time" is a typical value-added e ...

An automatic or manual device designed to control pressure, flow or temperature.

Across the width of a boat. Also Athwartships.

The rank held by a naval seaman.

A contract for leasing between the ship owners and the lessee. It would state, e.g., the duration of the lease in years or voyages.

Invisible waves in the electromagnetic spectrum that are used to communicate (radio) - and navigate (radar).

A motor controller that regulates the air flow through an end plate into the motor to control the speed and power. A speed regulation device built into or attached externally.

The ratio of clearance volume to the volume swept by the compressing element.

A rudder, keel, centerboard, or skeg.

Beneath the deck

The volume of a substance passing a point per unit time (e.g., meters per second, gallons per hour, etc.).

The extreme deck fore and aft measurement of a vessel.

Wide, a wide boat is a beamy boat

Secretly, to remove spirit from a keg or cask by making a small hole and sucking through a straw. also called Suck the Monkey