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Eng ID Term Definition
3461
new edition (of chart)
In British terminology, a new printing of an existing CHART embodying the latest informa­tion received in the Hydro­graphic Department. The ... more
In British terminology, a new printing of an existing CHART embodying the latest informa­tion received in the Hydro­graphic Department. The CHART is entirely revised throughout and modernized in style, all copies of the CHART in circulation being cancelled. When a new edition is published the LARGE and SMALL CORRECTIONS dates are removed (these corrections being embodied in the new edition). In U.S. terminology, a new printing of an existing CHART embodying corrections that have become so extensive or of such importance to NAVIGATION as to render all previous printings obsolete.
3462
new ice
A general term which includes FRAZIL ICE, SLUSH, SLUDGE, PANCAKE ICE and ICE RIND.
3463
new moon
See PHASES OF THE MOON.
3464
new print (of chart)
In U.S. terminology, a new issue of a CHART embodying only minor corrections. Such corrections are applied to the NEGATIVES and a new printi... more
In U.S. terminology, a new issue of a CHART embodying only minor corrections. Such corrections are applied to the NEGATIVES and a new printing plate made. New prints do not render previous printings of the current edition obsolete.
3465
new print date (of chart)
In U.S. terminology, the date when a NEW PRINT of a CHART is issued which embodies changes or corrections of a relatively minor character. T... more
In U.S. terminology, the date when a NEW PRINT of a CHART is issued which embodies changes or corrections of a relatively minor character. The new print date is added to the right of the edition date in the lower left-hand corner of the CHART.
3466
new survey
See RESURVEY.
3467
newton
The unit of force in the SI SYSTEM.
3468
lichenhead
Large blocks of CORAL torn loose from the outer face of a REEF and tossed on to the REEF FLAT by STORM WAVES or TSUNAMIS. The blocks are bla... more
Large blocks of CORAL torn loose from the outer face of a REEF and tossed on to the REEF FLAT by STORM WAVES or TSUNAMIS. The blocks are blackened by a crust of lichens after detachment from the REEF.
3469
night effect (or error)
See ERROR: POLARIZATION.
3470
nimbostratus
See CLOUD GENERA.
3471
nipped
(adj. and adv.). Said of a ship which is BESET when ICE forcibly presses against it. See BESET, ICEBOUND.
3472
nipping
The closing of ICE around a ship so that the ship is BESET and subjected to pressure from the ICE.
3473
no anchoring area
A ROUTEING measure comprising an area within defined limits where anchoring is hazardous or could result in unacceptable damage to the marin... more
A ROUTEING measure comprising an area within defined limits where anchoring is hazardous or could result in unacceptable damage to the marine environment. Anchoring in a no anchoring area should be avoided by all ships or certain classes of ships, except in case of immediate danger to the ship or the persons on board.
3474
no-bottom sounding(s)
See SOUNDING.
3475
no-check position
See STATION: INTERSECTION.
3476
noctiluca
A genus of usually pale pink luminescent dinoflagellates large enough to be seen by the unaided eye. This particular organism is responsible... more
A genus of usually pale pink luminescent dinoflagellates large enough to be seen by the unaided eye. This particular organism is responsible for much of the sheet-type LUMINESCENCE noted in coastal waters of various parts of the world OCEAN.
3477
nocturnal arc
See ARC: ASTRONOMICAL.
3478
nodal point
In optics, one of the two points on the OPTICAL AXIS of a LENS (or a system of LENSES) such that a RAY emergent from the second point is par... more
In optics, one of the two points on the OPTICAL AXIS of a LENS (or a system of LENSES) such that a RAY emergent from the second point is parallel to the RAY incident at the first. The first nodal point is referred to as the front nodal point or incident nodal point,and the second nodal point as the rear nodal point or emergent nodal point. An AMPHIDROMIC POINT. In ASTRONOMY, a NODE.
3479
nodal point: emergent
See NODAL POINT.
3480
nodal point: front
See NODAL POINT.