- the height of anything above a given planetary reference plane, especially above sea level on earth.
- extent or distance upward; height.
- Astronomy. the angular distance of a heavenly body above the horizon.
- the perpendicular distance from the vertex of a figure to the side opposite the vertex.
- the line through the vertex of a figure perpendicular to the base.
- Usually altitudes. a high place or region: mountain altitudes.
- high or important position, rank, etc.
Origin of altitude
SynonymsSee more synonyms for altitude on Thesaurus.com
Examples from the Web for altitude
Whatever happened overtook them both within a minute or so of that altitude change request, and they were never heard from again.Flight 8501 Poses Question: Are Modern Jets Too Automated to Fly?
January 4, 2015
And now that you mention it, I also got seasick, and had altitude sickness, and had to be rescued a few times.The Real-Life Raiders of the Lost Ark
November 14, 2014
Trekking at altitude is no easy feat, and each woman pushed herself harder than she thought possible.Motherless Daughters and Parentless Parents Trek to the Andes to Aid Orphans
August 21, 2014
All of this is consistent with a violent explosion at altitude.MH17 Is the World’s First Open-Source Air Crash Investigation
July 22, 2014
What with the altitude…I mean, I cried like a baby at Rocky IV.Courteney Cox Gets Personal About Her Directorial Debut, ‘Just Before I Go’
April 29, 2014
The altitude record at this time is about 4,165 feet, held by Paulhan.Flying Machines
W.J. Jackman and Thos. H. Russell
The tree-topped hills in their altitude are at times lost in the clouds.The Hunted Outlaw
Like a fine fruit, it will grow in one climate and not in another; at one altitude and not at another.Pax Vobiscum
He turned as they turned and climbed as they climbed for the advantage that altitude might give.
From their altitude of four thousand feet, they could see the Denver.The Solar Magnet
Sterner St. Paul Meek
- the vertical height of an object above some chosen level, esp above sea level; elevation
- geometry the perpendicular distance from the vertex to the base of a geometrical figure or solid
- Also called: elevation astronomy nautical the angular distance of a celestial body from the horizon measured along the vertical circle passing through the bodyCompare azimuth (def. 1)
- surveying the angle of elevation of a point above the horizontal plane of the observer
- (often plural) a high place or region
Word Origin and History for altitude
late 14c., from Latin altitudinem (nominative altitudo) "height, altitude," from altus "high" (see old).
- 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°). Unlike declination and celestial latitude-the corresponding points in other celestial coordinate systems-the altitude of star or other celestial object is dependent on an observer's geographic location and changes steadily as the sky passes overhead due to the rotation of the Earth. See more at altazimuth coordinate system.
- Mathematics The perpendicular distance from the base of a geometric figure, such as a triangle, to the opposite vertex, side, or surface.