- a detached and rounded or worn rock, especially a large one.
Origin of boulder
- a city in N Colorado.
Related Words for bouldermetal, rubble, lava, earth, gravel, slab, plate, stone, slice, ingot, wedge, rod, lump, hunk, strip, piece, crystal, grain, rock, gem
Examples from the Web for boulder
Contemporary Examples of boulder
[Tatum laughs] Like I found the three other artsy goth kids at Boulder and hung out with them.
I did one semester at Boulder, which was more a stereotypical, American collegiate experience.
But even at Boulder I found the artsy kids and hung out with them.
Boulder was attractive because "it's beautiful and peaceful and people are nice—the opposite of New York—and my mother's there."New York’s Nanny-State E-Cig Ban
December 20, 2013
Talia Eisenberg is a self-described former New York “party girl” who moved to Boulder Colorado to get healthy.E-Cigarettes, Facing Ban, Still Figuring Out What They Want to Be
December 19, 2013
Historical Examples of boulder
We dropped behind a boulder and Tse-tse counted while I lifted every scent.The Trail Book
Linda rushed to the boulder and knelt again, but she could get no response to her questions.Her Father's Daughter
He stooped; seized a boulder, hurled it at the oncoming Lee.The World Beyond
Raymond King Cummings
He was behind a boulder, not too dissimilar to Calhoun's breastwork.Pariah Planet
The girl stumbled, struck her head against a boulder, and lay still.Loot of the Void
Edwin K. Sloat
- 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
Word Origin for boulder
Word Origin and History for boulder
1670s, variant of Middle English bulder (c.1300), from a Scandinavian source akin to Swedish dialectal bullersten "noisy stone" (large stone in a stream, causing water to roar around it), from bullra "to roar" + sten "stone." Or the first element might be from *buller- "round object," from Proto-Germanic *bul-, from PIE *bhel- (2) "to inflate, swell" (see bole).