|altostratus (āl'tō-strāt'əs) Pronunciation Key
Plural altostrati (āl'tō-strāt'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.
Dictionary.com presents 366 FAQs, incorporating some of the frequently asked questions from the past with newer queries.