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Eng ID | Term | Definition |
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3721 | parallel sailing | See SAILING. |
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3722 | parallel sounding | A system of surveying in which the MOTHER VESSEL takes soundings while following a given course; at the same time an array of satellite boat... more |
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3723 | parameter | A quantity which remains constant within the limits of a given case or situation. |
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3724 | parametric | Characterizing a quantity which is influenced by the behaviour of one or more parameters. |
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3725 | parametric latitude | See LATITUDE. |
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3726 | paranthelion | PHOTOMETEOR of the HALO family, consisting of white, round, luminous spots, having a diameter slightly greater than that of the SUN, which ... more |
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3727 | parantiselena | PHOTOMETEOR of the HALO family, analogous to the PARANTHELION, the luminary being the MOON. |
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3728 | paraselene | Optical phenomenon of the HALO family, similar to but less brilliant than the PARHELION, the luminary being the MOON. |
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3729 | paraselenic circle | PHOTOMETEOR of the HALO family, analogous to the PARHELIC CIRCLE, the luminary being the MOON. |
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3730 | parhelia associated with the 22° halo | PHOTOMETEOR of the HALO family, consisting of two luminous iridescent spots which appear on the PARHELIC CIRCLE close to the SMALL HALO. |
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3731 | parhelia associated with the 46° halo | PHOTOMETEOR of the HALO family consisting of two luminous, iridescent spots which appear on the PARHELIC CIRCLE close to the LARGE HALO. |
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3732 | parhelic circle | PHOTOMETEOR of the HALO family, consisting of a white, horizontal circle, situated at the same angular height as the SUN. |
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3733 | partial eclipse | See ECLIPSE. |
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3734 | partial node | The point, line, or surface, in a STANDING WAVE system where some characteristic of the wave field has a minimum AMPLITUDE differing from z... more |
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3735 | partial tide | See TIDE. |
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3736 | particle velocity | In ocean wave studies, the instantaneous VELOCITY of a water particle undergoing orbital motion. At the CREST, its direction is the same a... more |
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3737 | particular scale | See SCALE. |
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3738 | Particularly Sensitive Sea Area (PSSA) | An area which needs special protection through action by the IMO because of its significance for recognised ecological or socio-economic or ... more |
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3739 | pascal | The unit of pressure in the SI SYSTEM. |
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3740 | pass | A break in a MOUNTAIN RANGE, permitting easier passage from one side of the range to the other; also called a COL. A navigable CHANNEL leadi... more |