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Eng ID Term Definition
5881
visual display unit (VDU)
See DISPLAY.
5882
visual line of position
A LINE OF POSITION determined by visual OBSERVATION of a LANDMARK, AID TO NAVIGATI­ON, etc.
5883
voe
An INLET, BAY, or CREEK.
5884
volcanic ash
Uncemented pyroclastic material consist­ing of fragments mostly under 4 millimetres in diame­ter. Coarse ash is 1/4 to 4 millimetres in grai... more
Uncemented pyroclastic material consist­ing of fragments mostly under 4 millimetres in diame­ter. Coarse ash is 1/4 to 4 millimetres in grain size; fine ash is below 1/4 millimetre. A constituent of some marine SEDIMENTS.
5885
volt
The unit of potential difference or electromoti­ve force in the SI SYSTEM.
5886
vulgar (or common) establishment
See ESTABLISHMENT.
5887
wadi
A watercourse that is permanently dry or dry except for the rainy season.
5888
wake
The path of disturbed water or air behind a craft in motion.
5889
waning moon
See PHASES OF THE MOON.
5890
want of correspondence
See PARALLAX: Y-.
5891
warm front
Any non-occluded FRONT which moves in such a way that warmer air replaces colder air.
5892
warm pool
A body of warm water entirely surrounded by cold water.
5893
warning: gale
Meteorological message intended to warn those concerned of the occurrence or expected occurrence of a WIND of Beaufort force 8 or 9 over a s... more
Meteorological message intended to warn those concerned of the occurrence or expected occurrence of a WIND of Beaufort force 8 or 9 over a speci­fied area.
5894
warning: hurricane
Meteoro­logical message intended to warn those concerned of the occurrence or expected occurrence of a WIND of BEAUFORT force 12 over a spec... more
Meteoro­logical message intended to warn those concerned of the occurrence or expected occurrence of a WIND of BEAUFORT force 12 over a speci­fied area. Tropical cyclone warning relating to a HURRICANE.
5895
warning: navigation
See NAVIGATIONAL WARNING.
5896
warning: storm
Meteorological message intended to warn those concerned of the occurrence or expected occurrence of a WIND of BEAUFORT force 10 or 11 over a... more
Meteorological message intended to warn those concerned of the occurrence or expected occurrence of a WIND of BEAUFORT force 10 or 11 over a specified area. More generally, forecast of severe weather conditions.
5897
warping buoy
A BUOY so located that lines to it can be used for the movement of ships.
5898
wash
The visible or audible motion of agitated water; especially that caused by the passage of a vessel.
5899
washovers
Small DELTAS formed on the lagoon side of a BAR separating the LAGOON from the OPEN SEA. STORM WAVES breaking over the BAR deposit SEDIMENT ... more
Small DELTAS formed on the lagoon side of a BAR separating the LAGOON from the OPEN SEA. STORM WAVES breaking over the BAR deposit SEDIMENT on the lagoon side in the form of DELTAS. Also called wave deltas.
5900
watch
A small TIMEPIECE of a size convenient to be carried on the person.