high altitude

/haɪˈæltɪtud/
adjective
  1. Located, occurring, or used at a great height above sea level.
    • The hikers needed extra oxygen for their high-altitude climb.
    • The pilot trained specifically for high-altitude flights.
    • High-altitude clouds are often thin and wispy.
  2. Relating to or designed for conditions of low atmospheric pressure and oxygen at great heights.
    • She bought a high-altitude sleeping bag for her mountain expedition.
    • The team used high-altitude tents to help them acclimate before the summit.
    • High-altitude cooking requires adjusting recipes for lower boiling points.
Antonyms
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