1. Word Games
  2. Word of the Day
  3. New Words & Slang
  4. Video
 

boulder

16 ENTRIES FOUND:
  1. boulder (noun)
  2. Boulder (geographical name)
  3. bouldering (noun)
  4. bowlder
  5. boulder beach (noun)
  6. boulder belt (noun)
  7. boulder clay (noun)
  8. boulder fern (noun)
  9. boulder pavement (noun)
  10. boulder raspberry (noun)
  11. boulder train (noun)
  12. Boulder Dam (geographical name)
  13. glacial boulder (noun)
  14. perched boulder (noun)
  15. Kalgoorlie-Boulder (geographical name)
  16. Hoover Dam (geographical name)

boul·der

noun \ˈbōl-dər\

Definition of BOULDER

: a detached and rounded or much-worn mass of rock
— boul·dered \-dərd\ adjective
— boul·dery \-d(ə-)rē\ adjective
See boulder defined for English-language learners »
See boulder defined for kids »

Variants of BOULDER

boul·der also bowl·der \ˈbōl-dər\

Origin of BOULDER

short for boulder stone, from Middle English bulder ston, part translation of a word of Scandinavian origin; akin to Swedish dialect bullersten large stone in a stream, from buller noise + sten stone
First Known Use: 1617

Other Geology Terms

anthracite, cwm, erratic, igneous, intrusive, mesa, sedimentary, silt, swale

Rhymes with BOULDER

folder, holder, molder, polder, scolder, shoulder, smolder

Learn More About BOULDER

Browse

Next Word in the Dictionary: boulder beach
Previous Word in the Dictionary: boulangerite
All Words Near: boulder

Seen & Heard

What made you want to look up boulder? Please tell us where you read or heard it (including the quote, if possible).

Test Your Vocabulary

Take Our 10-Question Quiz

Name That Thing

Take our visual vocab quiz

Test Your Knowledge »

True or False?

A quick quiz about stuff worth knowing

Take It Now »

Join Us on FB & Twitter

Get the Word of the Day and More

Facebook | Twitter

Get Our Free Apps

Voice Search, Favorites,
Word of the Day, and More

iPhone | iPad | Android | More