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ice jam

noun
  1. an obstruction of broken river ice in a narrow part of a channel.
  2. a mass of lake or sea ice broken and piled up against the shore by wind pressure.
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Origin of ice jam

First recorded in 1840–50
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for ice jam

Historical Examples of ice jam