ad·​vec·​tion ad-ˈvek-shən How to pronounce advection (audio)
: the usually horizontal movement of a mass of fluid (such as air or an ocean current)
also : transport (as of pollutants or plankton) by such movement
advect transitive verb
advective adjective

Example Sentences

Recent Examples on the Web Although numbers vary, between 300 and 400 ships have reportedly collapsed or capsized in the bay’s notorious advection fog. Kevin Fisher-paulson, San Francisco Chronicle, 7 Mar. 2023 The Dallas area typically sees two types of fog: advection and radiation, and each one warrants different weather conditions. Dallas News, 9 Dec. 2022 This week, Dallas residents likely witnessed advection fog, Prater said. Dallas News, 9 Dec. 2022 That’s because the type of fog seen this week, known as radiation fog, has slightly different tendencies than the classic fog the Bay Area sees in the summer, known as advection, National Weather Service meteorologists said. Danielle Echeverria, San Francisco Chronicle, 20 Jan. 2022 The fog hanging over North Texas this week is called advection fog, according to NBC5 meteorologist Samantha Davies. Dallas News, 15 Jan. 2020 There's going to be a good deal of moisture advection by Hurricane Florence, towards the Appalachians. Madeline Farber, Fox News, 12 Sep. 2018 See More

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

Word History


ad- + (con)vection

First Known Use

1910, in the meaning defined above

Time Traveler
The first known use of advection was in 1910

Dictionary Entries Near advection

Cite this Entry

“Advection.” Dictionary, Merriam-Webster, Accessed 27 Mar. 2023.

More from Merriam-Webster on advection

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