El Niño

noun

El Ni·​ño el-ˈnē-nyō How to pronounce El Niño (audio)
plural El Niños
: an irregularly recurring flow of unusually warm surface waters from the Pacific Ocean toward and along the western coast of South America that prevents upwelling of nutrient-rich cold deep water and that disrupts typical regional and global weather patterns compare la niña

Did you know?

Each year around Christmas time, a warm equatorial current flows southward along the coast of Peru. In the 19th century, Peruvian fisherman named that annual current "El Niño" in honor of the Christ child (el niño means "the child" in Spanish). Later, when scientists noted that in some years this warm current flow is more intense than usual, they adopted the name and applied it to that more potent but erratic climatic phenomenon. Now El Niño is used almost exclusively for the severe episodes rather than for the annual ones to which it was originally applied.

Examples of El Niño in a Sentence

Recent Examples on the Web The El Nino effect — which carries warm air from the central and eastern tropical Pacific Ocean across the U.S. — is largely to blame for the warmth. Laura Schulte, Journal Sentinel, 29 Mar. 2024 While the latter could be good for keeping wildfires in check in the spring and summer, the warmer winters (particularly in conjunction with the current El Nino event) are contributing to drought conditions. David Clarey, Journal Sentinel, 14 Mar. 2024 Climate change, El Nino conspire to fuel storms Multiple weather and climate phenomena are conspiring to make these storms particularly damaging. John Bacon, USA TODAY, 6 Feb. 2024 Strong El Nino conditions in the waters of the Pacific Ocean, and other ocean conditions in both the Pacific and the Atlantic, influenced the upper atmosphere across North America. Keith Matheny, Detroit Free Press, 6 Mar. 2024 Another strong El Nino also brought warm weather to the Upper Peninsula in 1998, Michels said. Jennifer Dixon, Detroit Free Press, 28 Feb. 2024 It’s linked to a wet winter from a strong El Nino — a natural and occasional warming of part of the Pacific Ocean that can lead to more precipitation than usual in California — plus climate change, which brings more intense atmospheric rivers to the area more frequently, Yu said. Ty O'Neil, Fortune, 24 Feb. 2024 Additionally, the Pacific Ocean is also seeing the effects of El Nino, where weakening trade winds reduce the upwelling of ocean waters and allow surface waters to bake in the sun and grow warmer still. John Bacon, USA TODAY, 6 Feb. 2024 Meteorologists have attributed Wisconsin’s record-warm winter conditions this year to El Nino, a short-term weather pattern, and the longer-term effects of climate change. Rick Barrett, Journal Sentinel, 31 Jan. 2024

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

Word History

Etymology

Spanish, literally, the child (i.e., the Christ child); from the appearance of the flow at the Christmas season

First Known Use

1896, in the meaning defined above

Time Traveler
The first known use of El Niño was in 1896

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Cite this Entry

“El Niño.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/El%20Ni%C3%B1o. Accessed 19 Apr. 2024.

Kids Definition

El Niño

noun
El Ni·​ño el-ˈnē-nyō How to pronounce El Niño (audio)
plural El Niños
: an irregularly occurring flow of unusually warm surface water along the western coast of South America that disrupts the normal regional and global weather patterns compare la niña
Etymology

Spanish, "the child" (referring to the Christ child); from the appearance of the flow at the Christmas season

Last Updated: - Updated example sentences
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