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Eng ID Term Definition
4581
scoria
(pl. scoriae). Volcanic rock fragments usually of basic composition, characterized by marked vesicu­larity, dark colour, high density, and ... more
(pl. scoriae). Volcanic rock fragments usually of basic composition, characterized by marked vesicu­larity, dark colour, high density, and a partly crystalline texture.
4582
scour
The action of a CURRENT or FLOW of water in clearing away MUD or other DEPOSIT; in civil engineering an artificial CURRENT or FLOW produced ... more
The action of a CURRENT or FLOW of water in clearing away MUD or other DEPOSIT; in civil engineering an artificial CURRENT or FLOW produced for this purpose.
4583
scree
A mass of DETRITUS, forming a precipitous, strong SLOPE upon a mountain-side. Also the material composing such a SLOPE. See also TALUS.
4584
screen
A device to shield or separate one part of an apparatus from other parts, or to separate the effects of one part on others. In electronic ch... more
A device to shield or separate one part of an apparatus from other parts, or to separate the effects of one part on others. In electronic charting, a device connected to a COMPUTER displaying information either under computer control, or under user control, e.g. on a CATHODE-RAY TUBE. Devices allowing for high resolution are capable of displaying also graphics.
4585
scribing
A method of preparing a MAP by cutting the lines into a prepared coating.
4586
sea
The great body of salt water in general, as oppo­sed to LAND; OCEAN. One of the smaller divi­sions of the OCEANS. The state of the surface... more
The great body of salt water in general, as oppo­sed to LAND; OCEAN. One of the smaller divi­sions of the OCEANS. The state of the surface of the OCEAN with regard to WAVE or SWELL, as a calm sea. See CROSS SEA, HEAD SEA, BEAM SEA, FOLLOWING SEA, QUARTER­ING SEA, SUGAR LOAF SEA.
4587
seabed sampler
A device used to obtain samples of the SEAFLOOR.
4588
seabed texture chart
A tracing showing the nature and texture of the BOTTOM, DEPTH CONTOURS and SEABED features including WRECKS and obstructions. Also called bo... more
A tracing showing the nature and texture of the BOTTOM, DEPTH CONTOURS and SEABED features including WRECKS and obstructions. Also called bottom texture tracing.
4589
seabed topography
See TOPOGRAPHY.
4590
sea bottom temperature
The temperature measured at or close to SEAFLOOR.
4591
seaboard
A general term for the rather extensive coastal region bordering the SEA.
4592
seabed
See SEAFLOOR.
4593
sea-bed
See SEAFLOOR
4594
sea (or lake) breeze
WIND of coastal regions, blowing by day from a large water surface (sea or lake) to­wards the LAND as a result of diurnal heating of the la... more
WIND of coastal regions, blowing by day from a large water surface (sea or lake) to­wards the LAND as a result of diurnal heating of the land surface.
4595
sea bottom
See SEAFLOOR.
4596
sea bottom sediment chart
See CHART: SEA BOTTOM SEDI­MENT.
4597
sea buoy
See FAREWELL BUOY.
4598
sea channel
A continuously sloping elongated discrete DEPRESSION commonly found in FANS or ABYSSAL PLAINS and customarily bordered by LEVEES on one or b... more
A continuously sloping elongated discrete DEPRESSION commonly found in FANS or ABYSSAL PLAINS and customarily bordered by LEVEES on one or both sides.
4599
seafloor
The BOTTOM of the OCEAN and seas where there is a generally smooth gentle GRADIENT. Also referred to as sea bed (sometimes seabed or sea-bed... more
The BOTTOM of the OCEAN and seas where there is a generally smooth gentle GRADIENT. Also referred to as sea bed (sometimes seabed or sea-bed), and sea bottom.
4600
sea fog
See FOG.