altitude Idioms & Phrases
noun effects (as nosebleed or nausea) of oxygen deficiency in the blood and tissues at high altitudes
Circle of altitude
(Astron.), a circle parallel to the horizon, having its pole in the zenith; an almucantar.
adjective satellite occurring at or from a relative high altitude
- high-level bombing
adjective satellite occurring at a relatively low altitude
- a low-level strafing run
- an arc of the meridian intercepted between the south point on the horizon and any point on the meridian. See
Parallel of altitude
(Astron.), one of the small circles of the sphere, parallel to the horizon; an almucantar.
Quadrant of altitude
- an appendage of the artificial globe, consisting of a slip of brass of the length of a quadrant of one of the great circles of the globe, and graduated. It may be fitted to the meridian, and being movable round to all points of the horizon, serves as a scale in measuring altitudes, azimuths, etc.
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