Abbreviation for "Dangerous and Hazardous" cargo.

The angle between the zenith and a heavenly body.

Used to indicated times measured in Coordinated Universal Time, a successor to Greenwich Mean Time. A time standard that is not affected by time zones or seasons.

National Committee on International Trade Documentation.

Time charter

Pleasure Yacht.

A discharge limit applied to manufacturing and commercial establishments in which only normal human sanitary wastewaters may be discharged to the municipal sewerage system. All other types of wastewater, such as that water used in manufacturing processes, ...

A vertical structural element that holds up a roof, encloses part or all of a room, or stands by itself to hold back soil.

[meaning]

Blocks on which the keel of a vessel rests when being built, or when she is in dry dock.

A chain or line (rope) bent to the anchor.

Sacrificial anodes placed on a vessel to prevent electrolysis of vital metal parts.

Similar to a centerboard, except that it is raised and lowered vertically in a trunk rather than pivoted. Like a keel, daggerboards are used to reduce leeway by preventing a sailboat being pushed sideways by the wind.

A severe naval punishment for serious offenses in which the victim was hauled from one yardarm to the other under the keel of the ship. The victim rarely survived; he would either be cut to ribbons by the shellfish on the ship's bottom or drown.

Loaded aboard a vessel.

System to Automate and Integrate Logistics.

Abbreviation for "Doing Business As." A legal term for conducting business under a registered name.

Secondary forestay supporting the leading edge of the mast and used to flatten the mainsail in building winds.

Pressure Vacuum (Valve)

To back an anchor, is to carry out a smaller one ahead of the one by which the vessel rides, to take off some of the strain. To back a sail, is throw it aback. To back and fill, is alternately to back and fill the sails.