altitude

• Nom désignant la hauteur d'un objet ou d'un point par rapport au niveau de la mer ou à la surface terrestre, utilisé notamment en aviation, en géographie et en alpinisme.

A noun referring to the height of an object or point in relation to sea level or ground level, commonly used in aviation, geography, and mountaineering.

1. Height above sea levelB1formal

   The height of an object or point in relation to sea level or ground level.

   Altitude (hauteur au-dessus du niveau de la mer)

   • The plane is flying at an altitude of 10,000 meters.
   • Mount Everest has the highest altitude on Earth.
   • The pilot reported the current altitude to the control tower.

   Synonymeselevationheight

2. Elevation in astronomyC1formalscientific

   The angular distance of a celestial body above the horizon.

   Altitude (astronomie)

   • The astronomer measured the altitude of the star.
   • The sun's altitude changes throughout the day.
   • They calculated the altitude of the moon using a sextant.

   Synonymeselevation

   Antonymesnadir