- a detached and rounded or worn rock, especially a large one.
Origin of boulder
- a city in N Colorado.
Examples from the Web for 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
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 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).