Search Result for "el nino southern oscillation":
Wordnet 3.0

NOUN (1)

1. a more intense El Nino that occurs every few years when the welling up of cold nutrient-rich water does not occur; kills plankton and fish and affects weather patterns; 



WordNet (r) 3.0 (2006):

El Nino southern oscillation
    n 1: a more intense El Nino that occurs every few years when the
         welling up of cold nutrient-rich water does not occur;
         kills plankton and fish and affects weather patterns