A person usually having the experience of a certificated master mariner and having a good knowledge of the characteristics of the port and its whole area. He administers the entire shipping movements that take place in and within reach of his port.

Related Terms

ADSORPTION

Adhesion of the molecules of gases, liquids, or dissolved substances to a solid surface, resulting in relatively high concentration of the molecules at the place of contact; e.g. the plating out of an anti-wear additive on metal surfaces.

GROWLER

A piece of ice smaller than a BERGY BIT or FLOEBERG, often transparent but appearing green or almost black in color. It extends less than 1 meter above the sea surface and its length is less than 20 feet (6 meters). A growler is large enough to be a hazard to shipping but small enough that it may escape visual or radar detection.

HARMONIC CONSTANTS

The amplitudes and epochs of the harmonic constituents of the tide or tidal current at any place

FILTER HEAD

An end closure for the filter case or bowl that contains one or more ports.

FRETTING

Wear phenomena taking place between two surfaces having oscillatory relative motion of small amplitude.

FILTER HEAD

An end closure for the filter case or bowl which contains one or more ports.

ARMATURE BAR

Copper bars used in place of wire windings, in large armatures, generators, or motors.

HAVEN

A place of safety for vessels

HARMONIC ANALYSIS

The process by which the observed tide or tidal current at any place is separated into basic harmonic constituents. Also called HARMONIC REDUCTION.

ICEBERG TONGUE

A major accumulation of icebergs projecting from the coast, held in place by grounding and joined together by fast ice.

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