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Altitude. Altitude is a distance measurement, usually in the vertical or "up" direction, between a reference datum and a point or object. The exact definition and reference datum varies according to the context (e.g., aviation, geometry, geographical survey, sport, or atmospheric pressure).
Altitude is the height above sea level or the distance from the bottom to the top of something. Learn how to use altitude in different contexts, such as earth science, geometry and aviation, and see synonyms and related words.
Learn the meaning of altitude as a noun, with synonyms, examples, and word history. Altitude can refer to the vertical distance of an object above a surface, the angular height of a celestial object, or an elevated region.
Oct 19, 2023 · Altitude is the distance above sea level, and it affects air pressure, temperature, and human health. Learn how altitude is measured, how it varies around the world, and how it relates to astronomy.
The height of an object or structure above a reference level, usually above sea level or the Earth's surface. Astronomy. The position of a celestial object above an observer's horizon, measured in degrees along a line between the horizon (0°) and the zenith (90°).
Common uses include aviation (flying, parachuting, gliding), and geography / surveying. In geometry it is also used as the height of the object itself. Generally, altitude is the distance one thing is above another thing. This is in the vertical or "up" direction.
The term elevation is mainly used when referring to points on the Earth's surface, while altitude or geopotential height is used for points above the surface, such as an aircraft in flight or a spacecraft in orbit, and depth is used for points below the surface.
