altitude
How high up
Altitude is height above a reference point, usually sea level or the ground.
Aircraft fly at altitude; mountain climbers acclimate to altitude.
The plane cruised at an altitude of 35,000 feet.
In geometry, altitude is the perpendicular distance from a base to the opposite vertex.
High altitude affects breathing, cooking times, and athletic performance.
Regulated overhead flight zone
- flight levelAviation altitude reference
- cruisingMoving at relaxed pace
- ceilingRoom's upper surface
- climbAscend using effort
descent · cockpit · pilot · aeronautics · airspeed · turbulence · pressurization · cabin
Peak or diplomatic gathering
- basecampExpedition's operational center
- acclimatizationAdjusting to new conditions
- sherpaNavigator through difficulty
- expeditionOrganized exploratory journey
alpinist · crampons · bivouac · ascent · peak · treeline · death zone · porter
Physical feature mapping
- contourBounding line of shape
- plateauFlat highland area
- highlandsElevated, hilly land areas
- mesaFlat-topped steep-sided elevation
escarpment · terrain · sea level · summit · peak · ridge · mountain range · watershed
Insufficient tissue oxygenation
- acclimatizationAdjusting to new conditions
- oxygenElement eight, colorless gas
- breathlessnessDifficulty drawing air
- edemaPathological tissue puffiness
decompression · fatigue · headache · nausea · dizziness · hemoglobin · respiration · exertion
Force upon contact
- barometerInstrument gauging atmospheric pressure
- barometricOf air pressure measurement
- millibarAtmospheric pressure unit
- hectopascalMetric pressure unit
troposphere · stratosphere · density · temperature · weather · clouds · precipitation · wind
Curved celestial path
- suborbitalBelow orbital altitude
- apogeeHighest orbital point
- perigeeOrbit's closest point
- satelliteOrbiting celestial body
ISS · spacecraft · reentry · exosphere · geostationary · astronaut · cosmonaut · rocket
airspace
Regulated overhead flight zone
- flight levelAviation altitude reference
- cruisingMoving at relaxed pace
- ceilingRoom's upper surface
climb · descent · cockpit · pilot · aeronautics · airspeed · turbulence · pressurization · cabin · oxygen mask
summit
Peak or diplomatic gathering
- basecampExpedition's operational center
- acclimatizationAdjusting to new conditions
- sherpaNavigator through difficulty
expedition · alpinist · crampons · bivouac · ascent · peak · treeline · death zone · porter · high camp
topography
Physical feature mapping
mesa · escarpment · terrain · sea level · summit · peak · ridge · mountain range · watershed · timberline
hypoxia
Insufficient tissue oxygenation
- acclimatizationAdjusting to new conditions
- oxygenElement eight, colorless gas
- breathlessnessDifficulty drawing air
edema · decompression · fatigue · headache · nausea · dizziness · hemoglobin · respiration · exertion · symptoms
pressure
Force upon contact
- barometerInstrument gauging atmospheric pressure
- barometricOf air pressure measurement
- millibarAtmospheric pressure unit
hectopascal · troposphere · stratosphere · density · temperature · weather · clouds · precipitation · wind · ozone layer
orbit
Curved celestial path
- suborbitalBelow orbital altitude
- apogeeHighest orbital point
- perigeeOrbit's closest point
satellite · ISS · spacecraft · reentry · exosphere · geostationary · astronaut · cosmonaut · rocket · trajectory
- flightflying, fly, flight, aviation, aircraft
- geometryangles, circles, angle, shapes, lines
- measurementsheight, stature, meters, depth, pound
- aviation termsradar, tower, runway, landing strip, flight plan
- geography termsmap, atlas, globe, compass, coordinates
- GPSsatellite, GPS navigation, GPS tracking, latitude, GPS receivers
- high altitudeGreat distance upward
- altitude sicknessHypoxia from high elevation
- losing altitude
- low altitudeMinimal elevation above surface
- cruising altitudeSteady airborne elevation maintained
- gaining altitude
altitudes, high-altitude, altitude sickness, altitude training