[strey-tuhs, strat-uhs]
noun, plural strati [strey-tahy, strat-ahy] .
a cloud of a class characterized by a gray, horizontal layer with a uniform base, found at a lower altitude than altostratus, usually below 8000 feet (2400 meters).

1795–1805; < Latin strātus; see stratum Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
stratus (ˈstreɪtəs)
n , pl -ti
cirrus Compare cumulus a grey layer cloud
[C19: via New Latin from Latin: strewn, from sternere to extend]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Word Origin & History

"a low layer of cloud," 1803, from L. stratus "a spreading," from stratus, pp. of sternere (see stratum).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Science Dictionary
stratus   (strāt'əs, strā'təs)  Pronunciation Key 
Plural strati (strāt'ī, strā'tī)
A diffuse, grayish cloud that often produces drizzle and is formed primarily in altitudes no higher than 2,000 m (6,560 ft). A stratus cloud close to the ground or water is called fog. See illustration at cloud.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Computing Dictionary

Stratus definition

One of the leading manufacturers of fault-tolerant computer systems. While virtually all of Stratus' core hardware and software is sold into the financial services, telecommunications, travel and transportation, and gaming these markets, a broad range of middleware and applications are developed and marketed by Stratus, its subsidiaries, and third party partners.
Yearly sales $609M, profits $43.5M (1996).
The Free On-line Dictionary of Computing, © Denis Howe 2010
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Example sentences
Stratus clouds can blanket the entire sky in a single pattern.
Stratus clouds are good indicators that precipitation is approaching.
Fog will often lift into a layer of stratus by an increase in wind or a rise in temperature.
Stratus clouds are usually the only clouds that touch the ground.
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