the quantum number that designates the orbital angular momentum of a particular quantum state of an electron in an atom and that assumes integral values from zero to one less than the value of the principal quantum number.
azimuthal quantum number
See under quantum number.
- Azimuthal projection
noun another term for zenithal projection azimuthal projection A map projection in which a globe, as of the Earth, is assumed to rest on a flat surface onto which its features are projected. An azimuthal projection produces a circular map with a chosen point—the point on the globe that is tangent to the flat surface—at […]
- Azimuthal equidistant projection
a projection in which the shortest distance between any point and a central point is a straight line, such a line representing a great circle through the central point. azimuthal equidistant projection (āz’ə-mŭth’əl) An azimuthal map projection designed so that a straight line from the central point on the map to any other point gives […]
Astronomy, Navigation. the arc of the horizon measured clockwise from the south point, in astronomy, or from the north point, in navigation, to the point where a vertical circle through a given heavenly body intersects the horizon. Surveying, Gunnery. the angle of horizontal deviation, measured clockwise, of a bearing from a standard direction, as from […]
- Azimuth circle
a device for measuring azimuths, consisting of a graduated ring equipped with a sighting vane on each side, which fits concentrically over a compass. Historical Examples An arc of the horizon intercepted between the azimuth circle of a celestial object and the magnetic meridian. The Sailor’s Word-Book William Henry Smyth The mean of all the […]