Arctic Oscillation


: the recurring movement of high pressure systems in the atmosphere from the middle latitudes to the polar latitudes and back
abbreviation AO
compare north atlantic oscillation, southern oscillation

Examples of Arctic Oscillation in a Sentence

Recent Examples on the Web This can happen when that Arctic Oscillation — a seesawing pattern of air pressure and atmospheric circulation anomalies — dips into what scientists call its negative mode. Tom Yulsman, Discover Magazine, 17 Apr. 2021 This relative coolness was partially the result of a strong negative Arctic Oscillation (AO) during the first half of the month. Todd Nelson, Star Tribune, 13 Mar. 2021

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'Arctic Oscillation.' 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

1998, in the meaning defined above

Time Traveler
The first known use of Arctic Oscillation was in 1998

Dictionary Entries Near Arctic Oscillation

Cite this Entry

“Arctic Oscillation.” Dictionary, Merriam-Webster, Accessed 17 May. 2024.

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