boulder clay

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noun Geology.

a glacial deposit consisting chiefly of unstratified clay with embedded boulders.

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Origin of boulder clay

First recorded in 1855–60

Words nearby boulder clay

boulangerie, boulangerite, Boulangism, boulder, Boulder Canyon, boulder clay, Boulder Dam, bouldering, boule, boules, bouleuterion

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use boulder clay in a sentence

But, together, Webster, Clay, and Calhoun delayed the Civil War for 40 years.
Election Day Is Scarier Than Halloween|P. J. O’Rourke|November 1, 2014|DAILY BEAST
Clay engineered the morally indefensible Missouri Compromise.
Election Day Is Scarier Than Halloween|P. J. O’Rourke|November 1, 2014|DAILY BEAST
From the 1820s to the 1850s, the upper house was dominated by Daniel Webster, Henry Clay, and John Calhoun.
Election Day Is Scarier Than Halloween|P. J. O’Rourke|November 1, 2014|DAILY BEAST
It just changed into something quite dark and unattractive with Clay, and was a unique moment in my artistic career.
Ron Perlman's Secret Suicide Attempt|William O’Connor|October 28, 2014|DAILY BEAST

Horace was athletic and clever, known, probably apocryphally, as the fastest cotton picker in Clay County.
Those Kansas City Blues: A Family History|Katie Baker|October 24, 2014|DAILY BEAST
The British had fired 143 cannon shot into the fort before the arrival of Gen. Clay.
The Every Day Book of History and Chronology|Joel Munsell
Only the laborers on the plantations smoke small clay pipes.
Tobacco; Its History, Varieties, Culture, Manufacture and Commerce|E. R. Billings.
They use those with long, straight stems, and both their clay and porcelain pipes are of the finest form and finish.
Tobacco; Its History, Varieties, Culture, Manufacture and Commerce|E. R. Billings.
Papier maché buttons came in with Henry Clay's patent in 1778.
Showell's Dictionary of Birmingham|Thomas T. Harman and Walter Showell
It is the custom in the English forts to make every Indian who comes to trade, a present of a clay pipe filled with tobacco.
Tobacco; Its History, Varieties, Culture, Manufacture and Commerce|E. R. Billings.

British Dictionary definitions for boulder clay

boulder clay

noun

an unstratified glacial deposit consisting of fine clay, boulders, and pebblesSee also till 4

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012