Meaning of altitude

al•ti•tude

Pronunciation: (al'ti-td", -tyd"), [key]
— n.
  1. the height of anything above a given planetary reference plane, esp. above sea level on earth.
  2. extent or distance upward; height.
  3. the angular distance of a heavenly body above the horizon.
    1. the perpendicular distance from the vertex of a figure to the side opposite the vertex.
    2. the line through the vertex of a figure perpendicular to the base.
  4. Usually,a high place or region: mountain altitudes.
  5. high or important position, rank, etc.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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