English

Appearance

View mode
Number of cards in a row Here you can select the number of cards to be placed in a row for each of supported screen resolutions. Your current resolution is highlighted in this way.
	Large desktop
	Desktop
	Tablet
	Phone

Page size

Total record count: 6269.

Records per page

Use the “Quick Search” box to locate your required term and/or definition. The following “Search conditions” can be used to refine your search: “Contains”, “Begins with”, “Ends with”, “Equals”, “Does not contain” or “Does not equal.”

	Eng ID	Term	Definition
	3941	pluviograph	RAIN GAUGE which includes an arrangement for the time recording of the depth of water from PRECIPITATION.
	3942	pocket compass	See COMPASS.
	3943	Poincaré wave	A long period gravity wave. The superposition of incident and reflected plane waves (Sverdrup Waves) such that the composite wave fronts ar... more A long period gravity wave. The superposition of incident and reflected plane waves (Sverdrup Waves) such that the composite wave fronts are perpendicular to the coast with a set of nodal lines normal to the wave fronts. The term is used in tidal analysis to study ocean tides and tides in open seas and gulfs.
	3944	point	One thirty-second of a circle, or 11 1/4 DEGREES. Also called COMPASS POINT when used in reference to COMPASS directions. The extreme end ... more One thirty-second of a circle, or 11 1/4 DEGREES. Also called COMPASS POINT when used in reference to COMPASS directions. The extreme end of a CAPE; or the outer end of any land area protruding into the water, usually less prominent than a CAPE. In digital cartography, the 0-dimensional geometric primitive of an object that specifies location.
	3945	pointing line	See COLLIMATION: LINE OF.
	3946	point of Aries	See EQUINOX.
	3947	point of arrival	See ARRIVAL: POINT OF.
	3948	point of destination	See DESTINATION: POINT OF.
	3949	point of origin	See COORDINATES: ORIGIN OF.
	3950	point of symmetry	The point in the FOCAL PLANE of a CAMERA about which all lens DISTORTIONS are symmetrical. If the LENS were perfectly mounted, the point of... more The point in the FOCAL PLANE of a CAMERA about which all lens DISTORTIONS are symmetrical. If the LENS were perfectly mounted, the point of symmetry would coincide with the PRINCIPAL POINT.
	3951	polar aurora	See AURORA.
	3952	polar axis	See AXIS.
	3953	polar bearing	See BEARING.
	3954	polar chart	See CHART.
	3955	polar circle	Either the ARCTIC CIRCLE (north polar circle) or the ANTARCTIC CIRCLE (south polar circle).
	3956	polar coordinates	See COORDINATES.
	3957	polar distance	ANGULAR DISTANCE from a CELESTIAL POLE; the arc of an HOUR CIRCLE between a CELESTIAL POLE, usually the ELEVATED POLE, and a point on the CE... more ANGULAR DISTANCE from a CELESTIAL POLE; the arc of an HOUR CIRCLE between a CELESTIAL POLE, usually the ELEVATED POLE, and a point on the CELESTIAL SPHERE, measured from the CELESTIAL POLE through 180°. When the DECLINATION and LATITUDE are of the same name, CODECLINATION is the same as polar distance measured from the ELEVATED POLE.
	3958	polar front	Quasi-permanent FRONT of great extent, of middle latitudes, which separates relatively cold polar air and relatively warm tropical air, and ... more Quasi-permanent FRONT of great extent, of middle latitudes, which separates relatively cold polar air and relatively warm tropical air, and on which WAVES are produced.
	3959	polar ice	SEA ICE that is more than one year old (in contrast to WINTER ICE). The WMO code defines polar ice as any SEA ICE more than one year old and... more SEA ICE that is more than one year old (in contrast to WINTER ICE). The WMO code defines polar ice as any SEA ICE more than one year old and more than 3 metres thick.
	3960	Polaris correction	A CORRECTION to be applied to the OBSERVED ALTITUDE of Polaris to obtain the LATITUDE.
There are no records to display