Definition of altitude

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Altitude (n.) The elevation of a point, or star, or other celestial object, above the horizon, measured by the arc of a vertical circle intercepted between such point and the horizon. It is either true or apparent; true when measured from the rational or real horizon, apparent when from the sensible or apparent horizon..

Lern More About Altitude

Low :: Low (adv.) In a path near the equator, so that the declination is small, or near the horizon, so that the altitude is small; -- said of the heavenly bodies with reference to the diurnal revolution; as, the moon runs low, that is, is comparatively near the horizon when on or near the meridian..
Bow :: Bow (v. t.) A rude sort of quadrant formerly used for taking the sun's altitude at sea.
Thermobarometer :: Thermobarometer (n.) An instrument for determining altitudes by the boiling point of water.
Height :: Height (n.) The distance to which anything rises above its foot, above that on which in stands, above the earth, or above the level of the sea; altitude; the measure upward from a surface, as the floor or the ground, of animal, especially of a man; stature..
Level :: Level (n.) A measurement of the difference of altitude of two points, by means of a level; as, to take a level..
Argument :: Argument (n.) The quantity on which another quantity in a table depends; as, the altitude is the argument of the refraction..
Quadrant :: Quadrant (n.) An instrument for measuring altitudes, variously constructed and mounted for different specific uses in astronomy, surveying, gunnery, etc., consisting commonly of a graduated arc of 90ยก, with an index or vernier, and either plain or telescopic sights, and usually having a plumb line or spirit level for fixing the vertical or horizontal direction..
Level :: Level (n.) A uniform or average height; a normal plane or altitude; a condition conformable to natural law or which will secure a level surface; as, moving fluids seek a level..
Altitude :: Altitude (n.) Height of degree; highest point or degree.
Altitude :: Altitude (n.) The perpendicular distance from the base of a figure to the summit, or to the side parallel to the base; as, the altitude of a triangle, pyramid, parallelogram, frustum, etc..
High :: High (adv.) In a high manner; in a high place; to a great altitude; to a great degree; largely; in a superior manner; eminently; powerfully.
Gunter''s Quadrant :: Gunter's quadrant () A thin quadrant, made of brass, wood, etc., showing a stereographic projection on the plane of the equator. By it are found the hour of the day, the sun's azimuth, the altitude of objects in degrees, etc. See Gunter's scale..
Altitude :: Altitude (n.) Height of rank or excellence; superiority.
Celsiture :: Celsiture (n.) Height; altitude.
Chorology :: Chorology (n.) The science which treats of the laws of distribution of living organisms over the earth's surface as to latitude, altitude, locality, etc..
Baculometry :: Baculometry (n.) Measurement of distance or altitude by a staff or staffs.
Dioptra :: Dioptra (n.) An optical instrument, invented by Hipparchus, for taking altitudes, leveling, etc..
High :: High (superl.) Elevated above any starting point of measurement, as a line, or surface; having altitude; lifted up; raised or extended in the direction of the zenith; lofty; tall; as, a high mountain, tower, tree; the sun is high..
Forestaff :: Forestaff (n.) An instrument formerly used at sea for taking the altitudes of heavenly bodies, now superseded by the sextant; -- called also cross-staff..
Backstaff :: Backstaff (n.) An instrument formerly used for taking the altitude of the heavenly bodies, but now superseded by the quadrant and sextant; -- so called because the observer turned his back to the body observed..
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