A term applied to steering gear, capstans, windlasses, winches, and miscellaneous machinery located on the decks of a ship.

The officers and seamen employed in the deck department. Also called deck crew, deck department, or just deck.

A continuous girder running in a fore-and-aft direction on the underside of deck beams.

A full nautical record of a ship voyage, noted down at the end of each watch by the deck officer on watch.

It refers to all officers who assist the Master in navigating the vessel when underway, and supervise the handling of cargo when in port.

The plating forming the covering of a deck, considered collectively.

A non-return valve arranged to prevent the back-flow of flammable gases, from cargo tanks, into an inert gas plant.

A ship specially intended to carry cargo exclusively on the deck.

The strake of deck planting that runs along the outboard edge of a deck.

The deck plating with stiffeners, girders and supporting pillars.

Seaman who works on the deck and stays in the wheelhouse attending to the orders of the duty officers during navigation and manoeuvring.

An enclosed erection on or above the weather deck that does not extend from side to side of the ship.

An agreement reached between a ship and port facility or another ship specifying the security measures to be implemented by both parties.

Breaking within the thickness of a paint film.

The process of taking assets out of operation as they come to the end of their working life.

Decomposition is the process by which dead organic substances are broken down into simpler organic or inorganic matter such as carbon dioxide, water, simple sugars and mineral salts.

Decontamination is the process of removing contaminants on an object or area, including chemicals, micro-organisms or radioactive substances.

Deep borehole disposal is the concept of disposing high-level radioactive waste from nuclear reactors in extremely deep boreholes instead of in more traditional deep geological repositories that are excavated like mines.

Deep cycle batteries are used to provide continuous electricity to run electric vehicles such as forklifts or golf carts.

Relatively constant temperature at a given depth which vary when heat is extracted or rejected by ground loops.