ALTIMETER Meaning and
Definition
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An altimeter is an instrument primarily used in aviation and mountaineering to measure and display altitude, which is the height above a reference point such as sea level. The word "altimeter" is derived from the Latin words "altus," meaning high, and "metrum," meaning measure.
It typically consists of a sensitive barometer that measures atmospheric pressure and converts it into altitude readings. When the altimeter is calibrated to a specific reference pressure, such as the standard atmospheric pressure at sea level, it can accurately determine the height of an aircraft or an object above ground level. The altitude is displayed on a dial or digital screen in various units like feet or meters.
In aviation, altimeters are essential for navigation, flight planning, and ensuring the safety of aircraft during takeoff, landing, and en route. Pilots use altimeters to maintain the desired altitude and to comply with air traffic control instructions. They are crucial in avoiding collisions with other aircraft and terrain, and play a vital role in determining the position of an aircraft relative to obstructions and restricted airspace.
In mountaineering, altimeters help climbers track their ascent and descent, monitor potential altitude sickness, and navigate in areas where landmarks or maps might be insufficient. Advanced altimeters may include additional features like temperature and weather readings, enabling climbers to anticipate and respond to changing conditions.
Overall, the altimeter is a versatile instrument that provides a reliable measure of vertical position or height and has proven indispensable in various navigation and outdoor activities.
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An instrument for taking heights.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
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Etymology of ALTIMETER
The word altimeter derives from the Latin words altus, meaning high, and metrum, meaning measure. Hence, altimeter can be translated as measuring device for height.
Similar spelling words for ALTIMETER
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