Meaning of altostratus in English:


Pronunciation /ˌaltəʊˈstrɑːtəs/


mass noun
  • Cloud forming a continuous uniform layer which resembles stratus but occurs at medium altitude (typically 2 to 7 km, 6,500 to 23,000 ft).

    ‘The grey layer looks like and should be an altostratus although the fronts look different in the tropical regions.’
    • ‘An altostratus cloud usually covers the whole sky and has a gray or blue-gray appearance.’
    • ‘Where enough light shows through cirrostratus clouds to create shadows, it does not with altostratus.’
    • ‘From the ground this altostratus looks white or slightly blue and watery.’
    • ‘You were probably looking at the sun or moon through a layer of altostratus clouds.’


Late 19th century from modern Latin alto- (from Latin altus ‘high’) + stratus.