One entry found for altitude.

Main Entry: al·ti·tude
Pronunciation: al-t-t(y)üd
Function: noun
1 a : the angular height of a celestial object above the horizon b : the vertical distance of an object above a given level (as sea level) c : a perpendicular line from a vertex of a geometric figure (as a triangle) to the opposite side or from one side or face to a parallel side or face; also : the length of such a line
2 : an elevated region -- usually used in plural
synonym see HEIGHT