Boulder meaning A boulder is a large rock fragment with diameter greater than 10. The meaning of BOULDER is a detached and rounded or much-worn mass of rock. A boulder is a large rounded rock that has been shaped by erosion and transported by ice or water. A boulder is a large smooth rock detached from its place of origin, usually by erosion or transport. 1 inches. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. They use the word to describe not just a big rock, but a rock that some natural force — a river, a glacier or the like — has moved from its original location to its present one. A boulder is a very large rock or a large, rounded rock that has been smoothed by the weather or water. Learn more about the word boulder, its synonyms, translations, and usage in sentences. . Learn about the origin of the word, the types and features of boulders, and some notable examples from different regions. Learn more about the word origin, usage, and related terms of boulder from Collins English Dictionary. A boulder is a rock — a big one. Definition of boulder noun in Oxford Advanced Learner's Dictionary. Learn more about the word boulder, its synonyms, collocations and translations from Cambridge Dictionary. Scientists often think of a boulder in more technical terms than we do. udhhe msgvh hnkgw rzhorduz zynow vvbxm czvk spuzkjxh rijwcto hiaowv