Southern Oscillation

noun

Definition of Southern Oscillation

climatology
: a periodic seesaw fluctuation in sea-level atmospheric pressures over the southern Pacific and Indian oceans that is believed to be linked to El Niño and La Niña events — compare arctic oscillation, north atlantic oscillation

First Known Use of Southern Oscillation

1923, in the meaning defined above

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The first known use of Southern Oscillation was in 1923

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Cite this Entry

“Southern Oscillation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Southern%20Oscillation. Accessed 27 Sep. 2020.

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