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avalanche

Syllabification: (av·a·lanche)
Pronunciation: /ˈavəˌlanCH/
Translate avalanche | into French | into German | into Italian | into Spanish
Definition of avalanche

noun

  • 1a mass of snow, ice, and rocks falling rapidly down a mountainside.
  • a large mass of any material moving rapidly downhill:an avalanche of mud
  • 2a sudden arrival or occurrence of something in overwhelming quantities:we have had an avalanche of applications
  • 3 Physics a cumulative process in which a fast-moving ion or electron generates further ions and electrons by collision.

verb

[no object]
  • 1(of a mass of snow, ice, and rocks) descend rapidly down a mountainside.
  • [with object] engulf or carry off by an avalanche:the climbers were avalanched down the south face of the mountain
  • 2 Physics undergo a rapid increase in conductivity due to an avalanche process.

Origin:

late 18th century: from French, alteration of the Alpine dialect word lavanche (of unknown origin), influenced by avaler 'descend'; compare with Italian valanga

avalanche in other Oxford dictionaries

Definition of avalanche in the British & World English dictionary