me·​so·​scale ˈme-zə-ˌskāl How to pronounce mesoscale (audio)
: of intermediate size
especially : of or relating to a meteorological phenomenon approximately 10 to 1000 kilometers in horizontal extent
mesoscale cloud pattern

Examples of mesoscale in a Sentence

Recent Examples on the Web The weather service said the tornado began near Bucks just west of the Mobile River and was associated with a powerful complex of storms (a mesoscale convective system or MCS) that was moving through the area at the time. Leigh Morgan, al, 17 June 2023 The weather service said forecast models are suggesting a complex of storms -- referred to as a mesoscale convective system or MCS -- could develop to the northwest of Alabama later today and push into the state tonight. Leigh Morgan, al, 8 May 2023 The first could begin later this morning and last until around 3 p.m. Forecasters said a cluster or storms, or mesoscale convective system (MCS), could work its way northward and eastward from the Gulf of Mexico this morning. Leigh Morgan, al, 29 Apr. 2023 This particular mission is called the Sub-Mesoscale Ocean Dynamics Experiment or S-MODE; sub-mesoscale refers to ocean dynamics that are smaller than 10 kilometers across like ocean eddies, which swirl around the ocean’s surface, stirring up the water. Tara Duggan, San Francisco Chronicle, 29 Oct. 2021

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'mesoscale.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1956, in the meaning defined above

Time Traveler
The first known use of mesoscale was in 1956

Dictionary Entries Near mesoscale

Cite this Entry

“Mesoscale.” Dictionary, Merriam-Webster, Accessed 20 Feb. 2024.

More from Merriam-Webster on mesoscale

Love words? Need even more definitions?

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