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Eng ID | Term | Definition |
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4401 | retardation | In ELECTRONIC NAVIGATION, the amount of delay in TIME or PHASE ANGLE introduced by the resistivity of the GROUND over which the SIGNAL is p... more |
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4402 | retentivity: magnetic | See MAGNETIC RETENTIVITY. |
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4403 | reticle (or reticule) | A system of wires, hairs, threads, etched lines, or the like, placed normal to the AXIS of a TELESCOPE at its principal FOCUS, by means of ... more |
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4404 | reticle ring | The ring across which the system of wires, hairs, threads, or the like of a RETICLE are stretched; or the ring which supports the glass DIAP... more |
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4405 | retired line of position | A LINE OF POSITION which has been moved backward along the COURSE line to correspond with a TIME previous to that at which the line was esta... more |
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4406 | retrogression of a beach | See RECESSION OF A SHORELINE. |
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4407 | reverberation | Continuation of RADIANT ENERGY, particularly SOUND by multiple REFLECTION. SOUND scattered towards the source, principally from the ocean s... more |
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4408 | reverse azimuth | See AZIMUTH: BACK. |
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4409 | reversing current | See CURRENT. |
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4410 | reversing thermometer | See THERMOMETER. |
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4411 | reversing water bottle | See WATER BOTTLE. |
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4412 | revetment | Facing of stone or other material, either permanent or temporary, placed along the edge of a stream to stabilize the bank and to protect it ... more |
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4413 | revolution | Motion of a CELESTIAL BODY in its ORBIT; circular motion about an AXIS usually external to the body. The terms revolution and ROTATION are o... more |
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4414 | revolver | See FIX: CIRCULAR. |
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4415 | revolving light | See LIGHT: ROTATING. |
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4416 | rho-teta system | Positioning system measuring the distance (rho) and direction (teta) from an existing control station to a mobile or another point. |
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4417 | rhumb | See RHUMB LINE. |
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4418 | rhumb line | A line on the surface of the EARTH making the same oblique angle with all MERIDIANS; a LOXODROME spiralling toward the POLES in a constant t... more |
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4419 | rhumb line sailing | See SAILING. |
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4420 | ria | A long narrow INLET, with DEPTH gradually diminishing inward; a CREEK. Any broad RIVER opening into the OCEAN. |