altostratus

UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/ˌæltəʊˈstreɪtəs/US:USA pronunciation: respellingUSA pronunciation: respelling(al′tō strā′təs, -strat′əs)


WordReference Random House Unabridged Dictionary of American English © 2026
al•to•stra•tus  (al′tō strā′təs, -strat′əs),USA pronunciation n., pl. -tus. [Meteorol.]
  1. Meteorologya cloud of a class characterized by a generally uniform gray sheet or layer, lighter in color than nimbostratus and darker than cirrostratus: of medium altitude, about 8000–20,000 ft. (2450–6100 m).
  • alto- + stratus 1890–95

Collins Concise English Dictionary © HarperCollins Publishers::
altostratus / ˌæltəʊˈstreɪtəs -ˈstrɑː-/ ( -ti / -taɪ/)
  1. a layer cloud at an intermediate height of about 2400 to 6000 metres (8000 to 20 000 feet)
'altostratus' also found in these entries (note: many are not synonyms or translations):
As - alto - stratus

Forum discussions with the word(s) "altostratus" in the title:


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