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boulder
or bowl·der
[ bohl-der ]
/ ËboÊl dÉr /
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noun
a detached and rounded or worn rock, especially a large one.
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Origin of boulder
1610â20; short for boulder stone;Middle English bulderston<Scandinavian; compare dialectal Swedish bullersten big stone (in a stream), equivalent to buller rumbling noise (<Old Swedish bulder) + stenstone
OTHER WORDS FROM boulder
bouldered, adjectiveboul·der·y, adjectiveWords nearby boulder
Other definitions for boulder (2 of 2)
Boulder
[ bohl-der ]
/ ËboÊl dÉr /
noun
a city in N Colorado.
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use boulder in a sentence
British Dictionary definitions for boulder
boulder
/ (ËbÉÊldÉ) /
noun
a smooth rounded mass of rock that has a diameter greater than 25cm and that has been shaped by erosion and transported by ice or water from its original position
geology a rock fragment with a diameter greater than 256 mm and thus bigger than a cobble
Derived forms of boulder
bouldery, adjectiveWord Origin for boulder
C13: probably of Scandinavian origin; compare Swedish dialect bullersten, from Old Swedish bulder rumbling + sten stone
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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