- 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.
Related formsal·ti·tu·di·nous [al-ti-tood-n-uhs, -tyood-] /ˌæl tɪˈtud n əs, -ˈtyud-/, adjective
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?|Clive Irving|January 4, 2015|DAILY BEAST
And now that you mention it, I also got seasick, and had altitude sickness, and had to be rescued a few times.
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|Allison Gilbert|August 21, 2014|DAILY BEAST
All of this is consistent with a violent explosion at altitude.MH17 Is the World’s First Open-Source Air Crash Investigation|Clive Irving|July 22, 2014|DAILY BEAST
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’|Kevin Fallon|April 29, 2014|DAILY BEAST
Jack went to the entrance of the cave, and looked at the altitude of the sun.The Harlequin Opal, Vol. 2 (of 3)|Fergus Hume
At an altitude of about twelve thousand feet the depth of the snow became suddenly less, soon falling to only an inch or so.The Spell of the Rockies|Enos A. Mills
The clean-washed air is so refreshing after being in rooms, however large, at this altitude.Diplomatic Days|Edith O'Shaughnessy
At an altitude of several hundred feet it straightened out and went due east.The Night-Born|Jack London
The higher the temperature, and the greater the altitude, the less distance the height of the pump can be above the water.The Library of Work and Play: Mechanics, Indoors and Out|Fred T. Hodgson