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altostratus
[ al-toh-strey-tuhs, -strat-uhs ]
noun
, Meteorology.
, plural al·to·stra·tus.
- a 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 feet (2450–6100 meters).
altostratus
/ ˌæltəʊˈstreɪtəs; -ˈstrɑː- /
noun
- a layer cloud at an intermediate height of about 2400 to 6000 metres (8000 to 20 000 feet)
altostratus
/ ăl′tō-străt′əs /
, Plural altostrati ăl′tō-străt′ī′
- A mid-altitude cloud that extends in flat, smooth sheets or layers of varying thickness. Altostratus clouds generally form between 2,000 and 6,100 m (6,560 and 20,000 ft) and often produce long, steady rain showers.
- See illustration at cloud
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Word History and Origins
Origin of altostratus1
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