a detached and rounded or worn rock, especially a large one.
- bouldered, adjective
- boul·der·y, adjective
Other definitions for Boulder (2 of 2)
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
They found that boulders in this area showed bright veins, narrow in width but about a meter in length, similar to what’s found in other carbonaceous chondritic meteorites that have landed on Earth.Asteroid Bennu may have been home to ancient water flows | Neel Patel | October 8, 2020 | MIT Technology Review
When NASA’s OSIRIS-REx arrived at near-Earth asteroid Bennu, scientists were dismayed to find a surface covered with hazardous-looking boulders.The asteroid Bennu’s brittle boulders may make grabbing a sample easier | Lisa Grossman | October 8, 2020 | Science News
She continues to boulder and sport-climb both at the gym and outdoors.Why Experts Are Exploring Climbing as a Form of Therapy | Ula Chrobak | October 6, 2020 | Outside Online
The trail finishes with a bang, as hikers must scramble hand over foot to climb several massive boulders on their way to the mesa top, where the modern world and parking lot await.
If you have trails or open space nearby, scaling small boulders works, too.
[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."
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 | Alex Halperin | December 19, 2013 | THE DAILY BEAST
On the opposite side of the stream, set back about thirty paces from the brink, stood a granite boulder.Uncanny Tales | Various
At the far end we made a little fire and lay round it in the shadow of a big boulder.Three More John Silence Stories | Algernon Blackwood
boulder beaches are so quick in answering to every slight change in the conditions which affect them that they seem almost alive.
The cutting is not altogether in the fixed material, for the boulder itself is also worn and scored in the work.
Here and there we will find a boulder perched on a pedestal of ice, which indicates a recent down-wearing of the field.
British Dictionary definitions for boulder
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
- bouldery, adjective
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