You searched for: “altitude
1. The measurement of height, usually given in meters above sea level.
2. The angular distance; usually measured in degrees, above the horizon, from zero degrees at the horizon to 90 degrees at the zenith.

One of the two co-ordinates (the other being azimuth) that define a celestial object's position, used with an altazimuth mount.

Word Entries at Word Info: “altitude
altitude (AL ti tood", AL ti tyood") (s) (noun), altitudes (pl)
1. The height of something above a specific level; especially, above sea level or the earth's surface: The higher the altitude, the lower the temperature.

The aircraft was flying at an altitude of 9,000 feet or 2.74 kilometers.

2. A place or region situated high above sea level: The aircraft was trying to avoid the lightening and strong winds by flying at a higher altitude above the thunderstorm.
3. Etymology: from Latin altitudo, from altus, "high" + -tude, "quality, condition of".
This entry is located in the following units: alto-, alt-, alti- (page 1) -tude (page 1)
Word Entries at Word Info containing the term: “altitude
aerotitis, barotitis, aero-otitis, aviator's ear, aviation otitis, altitude dysbarism
1. Inflammation of the ear, especially the middle ear, due to failure of the eustachian tube to remain open during sudden changes in barometric pressure, which may occur during flying, diving, or working in a pressure chamber.
2. Ottic barotrauma caused by abrupt atmospheric pressure changes; such as, may affect the crew and passengers of aircraft during flight, particularly during descent.
3. Inflammation of the ear caused by pressure changes when auditory tubes are obstructed which occurs commonly in aviators and divers.
This entry is located in the following unit: aero-, aer-, aeri- + (page 10)
altitude sickness (s) (noun), altitude sicknesses (pl)
Symptoms that are caused by decreased oxygen in the environment as a result of being significantly higher above sea level; usually above 2,400 meters or approximately 8,000 feet: "A person may get altitude sickness when an airplane suddenly goes up to a high altitude, or slowly, as when mountain climbing."

"A lack of oxygen causes headache, shortness of breath, malaise, decreased ability to concentrate, lack of judgment, lightheadedness, fainting, and when it is severe, death."

"The beginning indicator of altitude sicknesses may be euphoria, meaning individuals are unaware of the cause of the problem; so, it is important that people live in high altitudes for a period of weeks, or even months, in order to safely adapt to the high altitude conditions."

This entry is located in the following unit: alto-, alt-, alti- (page 1)
calibrated altitude (s) (noun), calibrated altitudes (pl)
The height or elevation above sea level that is corrected for instrument and installation errors.
This entry is located in the following unit: calibra-, calibr-, caliber- (page 1)