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Eng ID | Term | Definition |
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4801 | sky-wave correction | The CORRECTION to be applied to the time difference reading of received SKY WAVES to convert it to an equivalent GROUND WAVE reading. |
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4802 | slack tide | See SLACK WATER. |
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4803 | slack water | The interval when the SPEED of the TIDAL CURRENT is very weak or zero; usually refers to the period of reversal between EBB and FLOOD curren... more |
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4804 | slant distance | The straight-line distance from one point to another, as contrasted with GROUND DISTANCE. This expression is customarily used only when the ... more |
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4805 | slant range | See SLANT DISTANCE. |
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4806 | slave | A SLAVE STATION. |
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4807 | slave station | In a radio navigation system, the transmitting station controlled or triggered by the SIGNAL received from the MASTER STATION. Often shorten... more |
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4808 | slide: dark | A thin PLATE (usually metal or fibre, rigid or flexible) which, after insertion in a camera magazine, renders it light-tight. |
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4809 | slide (or sliding) rule | A device used for performing rapid computations involving multiplication, division, proportion, roots, and powers. It has a body like a rul... more |
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4810 | slime | Soft, fine, oozy MUD or other substance of similar consistency. |
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4811 | slip | See DOCK. |
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4812 | slipway | The prepared and usually reinforced inclined surface on which keel- and bilge-blocks are laid for supporting a vessel under construction. |
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4813 | slope | The deepening SEAFLOOR out from the SHELF EDGE to the upper limit of the CONTINENTAL RISE, or the point where there is a general decrease in... more |
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4814 | slope and height factor | In the measurement of distances with Tellurometer, a factor to be reckoned when reducing distances to the SPHEROID. It takes into account t... more |
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4815 | slope angle | The angle between a SLOPE and the horizontal. |
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4816 | slope correction (tape) | See TAPE: GRADE CORRECTION. |
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4817 | slotted-template triangulation | In PHOTOGRAMMETRY, a graphical RADIAL TRIANGULATION using slotted TEMPLATES. |
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4818 | slough | A minor marshland or tidal WATERWAY which usually connects other tidal areas; often more or less equivalent to a BAYOU. Quagmire, SWAMP, mir... more |
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4819 | sludge | Spongy whitish ice lumps, a few centimetres across; they consist of SLUSH, of snow slush and sometimes of spongy ice lumps formed on the BO... more |
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4820 | sluice | Sliding gate or other contrivance for changing the level of a body of water by controlling FLOW into or out of it. |