boulder
UK /ˈbəʊl.də(ɹ)/ · US /ˈboʊl.dɚ/ noun, verb, proper noun
Forms boulders bouldering bouldered bowlder bulder
- noun A large mass of stone detached from the surrounding land.
- noun (geology) A particle greater than 256 mm in diameter, following the Wentworth scale
- noun A large marble, in children's games.
- noun (climbing) A session of bouldering; involvement in bouldering.
- verb (climbing, ambitransitive) To engage in bouldering.
- proper noun A town in Western Australia, merged with Kalgoorlie in 1989 as the City of Kalgoorlie-Boulder.
- proper noun A home rule municipality, the county seat of Boulder County, Colorado, United States.
- proper noun An unincorporated community in Clinton County, Illinois, United States.
- proper noun A town, the county seat of Jefferson County, Montana, United States.
- proper noun A small town in Garfield County, Utah, United States.
- proper noun An unincorporated community in Barbour County, West Virginia, United States.
- proper noun A census-designated place in Sublette County, Wyoming, United States.
Synonyms
Etymology
From late Middle English bulder, short for Middle English bulder ston (“a stone that's been worn into a round shape, boulder, cobblestone”), possibly from Old Swedish *buldersten, itself possibly from Old Swedish bulder (“rumble, noise”) + sten (“stone”); whence dialectal Swedish bullersten (“large stone in a stream, causing water to roar around it”). The first element may alternatively be allied to Old Swedish bulle, bolle (“round drinking vessel, tumbler”), from Old Norse bolli, related to Old English bolla (“round object, bowl”), see English bowl.
Webster’s 1913
- noun Same as Bowlder.
- noun A large stone, worn smooth or rounded by the action of water; a large pebble.
- noun A mass of any rock, whether rounded or not, that has been transported by natural agencies from its native bed. See Drift.
Etymology [Cf. Sw. bullra to roar, rattle, Dan. buldre, dial. Sw. bullersteen larger kind of pebbles; perh. akin to E. bellow.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “boulder”, CC BY-SA 4.0. Details