altostratus

noun
al·​to·​stra·​tus | \ ˌal-tō-ˈstrā-təs How to pronounce altostratus (audio) , -ˈstra- How to pronounce altostratus (audio) \
plural altostrati\ ˌal-​tō-​ˈstrā-​ˌtī How to pronounce altostratus (audio) , -​ˈstra-​ \

Definition of altostratus

: a fairly uniform mid-altitude layer of gray cloud darker than cirrostratus — see cloud illustration

Examples of altostratus in a Sentence

Recent Examples on the Web Mid-level clouds are usually gray and are identified as either altocumulus, altostratus, or nimbostratus. 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 'altostratus.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of altostratus

1890, in the meaning defined above

History and Etymology for altostratus

New Latin, from Latin altus + New Latin -o- + stratus

Learn More About altostratus

Time Traveler for altostratus

Time Traveler

The first known use of altostratus was in 1890

See more words from the same year

Dictionary Entries Near altostratus

alto saxophone

altostratus

alto tenor

See More Nearby Entries 

Statistics for altostratus

Cite this Entry

“Altostratus.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/altostratus. Accessed 5 Dec. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More from Merriam-Webster on altostratus

Britannica.com: Encyclopedia article about altostratus

WORD OF THE DAY

Test Your Vocabulary

Difficult Spelling Words Quiz

  • alphabet pasta spelling help
  • Which is the correct spelling?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!