El Niño

Từ điển Oxford Advanced Learner 8th

El Niño 7 [El Niño El Niños] BrE [ˌel ˈniːnjəʊ] NAmE [ˌel ˈniːnoʊ] noun uncountable
a set of changes in the weather system near the coast of northern Peru and Ecuador that happens every few years, causing the surface of the Pacific Ocean there to become warmer and having severe effects on the weather in many parts of the world
compare ↑La Niña