stra·​tus | \ ˈstrā-təs How to pronounce stratus (audio) , ˈstra- \
plural strati\ ˈstrā-​ˌtī How to pronounce stratus (audio) , ˈstra-​ \

Definition of stratus

: a low cloud form extending over a large area at altitudes of usually 2000 to 7000 feet (600 to 2100 meters) — see cloud illustration

Examples of stratus in a Sentence

Recent Examples on the Web Low stratus clouds shrouded parts of the Bay Area on Sunday morning but were expected to dissipate later in the day. Emma Talley, San Francisco Chronicle, 8 Aug. 2021 The region can expect sun and low stratus clouds in the afternoon and evening, along with onshore flows of west and northwest winds — all conspiring to help keep conditions relatively cool. Omar Shaikh Rashad, San Francisco Chronicle, 1 July 2021 Instead, Tom should take a review day to make sure that cumulus and stratus are firmly in his brain. Brian Platzer, The Atlantic, 23 Mar. 2021 Tom looks at 10 pages of class notes on cumulus, stratus, and cirrus clouds and starts to panic. Brian Platzer, The Atlantic, 23 Mar. 2021 That means cooler, moist breezes blowing off the Pacific Ocean toward land, pushing marine stratus clouds inland. Los Angeles Times, 13 Feb. 2021 Check out the clouds accompanying a strong jet stream over #idwx #mtwx #wywx and the view of coastal stratus and fog is showing up nicely on the morning imagery. Nora Mishanec,, 20 Oct. 2020 Most of the metro area is waking to heavy cloud cover early Thursday as marine stratus has pushed in from the coast. oregonlive, 25 June 2020 Low clouds fall into four divisions: cumulus, stratus, cumulonimbus, and stratocumulus. Catherine Zuckerman, National Geographic, 24 Apr. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'stratus.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of stratus

circa 1803, in the meaning defined above

History and Etymology for stratus

New Latin, from Latin, past participle of sternere

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Time Traveler for stratus

Time Traveler

The first known use of stratus was circa 1803

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Dictionary Entries Near stratus

stratum corneum


stratus cumuliformis

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Statistics for stratus

Cite this Entry

“Stratus.” Dictionary, Merriam-Webster, Accessed 30 Nov. 2021.

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More Definitions for stratus


stra·​tus | \ ˈstrā-təs How to pronounce stratus (audio) , ˈstra- \
plural strati\ ˈstrā-​ˌtī , ˈstra-​ \

Kids Definition of stratus

: a cloud extending over a large area at an altitude of from 2000 to 7000 feet (600 to 2100 meters)

More from Merriam-Webster on stratus Encyclopedia article about stratus


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