- an obstruction of broken river ice in a narrow part of a channel.
- a mass of lake or sea ice broken and piled up against the shore by wind pressure.
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
With his mother he was trapped on a floe when the ice-jam broke.Brave Deeds of Union Soldiers
She had stayed on the beach making sketches of the ice-jam on the lake front.The Cruise of the O Moo
Roy J. Snell
We have been inundated by the river in consequence of what is called here an ice-jam.
She didn't catch the wind o' that, lad, till we were navigating our raft downstream agen the ice-jam.Heralds of Empire
Agnes C. Laut