1. A fall or slide of a large mass of material, especially of snow, down a mountainside.
2. A massive or overwhelming amount; a flood: received an avalanche of mail.
v. av·a·lanched, av·a·lanch·ing, av·a·lanch·es
To fall or slide in a massive or overwhelming amount.
To overwhelm; inundate.
[French; akin to Provençal lavanca, ravine, perhaps ultimately from Latin lābī, to slip.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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