Meaning of Ooze(Marine Term)
Deep-sea deposit composed of very fine grains of foramimfera, shell, diatoms, and other substances.
Soft and slimy marine sediment, consisting mainly of the shells of small organisms, offering poor holding ground for an anchor.
Meaning of Oar(Marine Term)
Rowing implement made of wood and consisting of a blade, a long shaft and a loom that forms a hand-grip. Blade may be flat or curved.
A long shaft with a handgrip at one end and a broad blade at the other, used as a lever for the man-ual propulsion of small boats or galleys. From Old Norse ar.
Meaning of Offing(Marine Term)
Sea area lying between visible horizon and a line midway between horizon and observer on the shore. To keep an offing is to keep a safe distance away from the coast.
 The more distant part of the visible sea.
Meaning of Oceanus(Marine Term) Defination In ancient mythology was the god of the river Oceanus. He and his wife, Tethys, were parents of all rivers, and of 3000 nymphs (Oceanides). This Greek sea-god was lord of the great river called Ocean, which completely surrounded the earth, rose in the underworld of Hades, and housed sun and moon between their setting and rising. He is normally depicted...
Meaning of Oleron(Marine Term)
Island at mouth of river Charente, France. Gave its name to the famous maritime ‘Laws of Oleron’.
See Rôles de Oléron.
Meaning of Obstruction(Marine Term) Defination In a chart, signifies something below chart datum that is a possible menace to navigation.  A reef, shoal, wreck, or other ob-ject making it necessary to change course in avoid-ance.  Something that impedes a radar beam. Be-cause of diffraction there is some illumination behind an obstruction, with lower frequency beams tending to illuminate...
Meaning of Observation(Marine Term) Defination Measurement of altitude and bearing of a heavenly body. 2. Measurement of tidal phenomena.  General; the act of measuring some magnitude with an instrument, such as the time of an occultation (with a clock); the right ascension of a star (with a transit instrument and clock); the sun’s altitude, or the distance of the moon from a star (with a...
Meaning of Oakum(Marine Term)
Rope that has been unlaid and the yarns teased out. Used for caulking seams, filling fenders, and other purposes.
Unraveled rope fiber, mixed with resin and pitch, for use in caulking the seams of wooden vessels.
Meaning of Ocean(Marine Term) Defination Originally a great river that was supposed to encircle the habitable world. Now applied to the great seas that extend between the continents.  The vast, uninterrupted, body of salt water that covers some three-quarters of the earth’s surface, filling its depressions and surrounding the continents.  One of five geographical regions known as the...
Meaning of Old Man(Marine Term)
Colloquial name for the commander of a merchant vessel.
Popular term, combining affection with a hint of disrespect, for the master of a merchantman or captain of a warship, used regardless of age or gen-der. Less frequently, a flag officer is referred to as “Old Gentleman.” Neither term is used face-to-face.
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