boulder

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++

Related topics: Nature

boul·der /ˈbəʊldə $ ˈboʊldər/ noun [countable]  DNa large round piece of rock 巨石，巨砾

Examples from the Corpus

boulder• My shin had struck a boulder on the river bottom during my spill.• A dozen or so greenish boulders lurked with angular menace below.• Two huge boulders had to be moved out of the way before the trucks could get through.• In one of the passes they pulled off the paved highway and parked out of sight of it, among limestone boulders.• Pyrotechnics, a runaway boulder and a few animatronic Indys are along the way.• He sat down on a small boulder a few feet away, the rifles across his knees.• Stephen went back across the river again, clambering over the boulders.• With nervous steps, I crossed from one slippery wet boulder to the next whilst the water swirled and gurgled beneath.• What was I doing cavorting with boulders in the middle of nowhere?Origin boulder (1400-1500) From a Scandinavian language

boul·der nounChineseSyllable  

piece round of large Corpus rock a

boulder
boul‧der /ˈbəʊldə $ ˈboʊldər/ noun [countable]a large round piece of rock
     

THESAURUS

   ▪ rock a piece of the hard substance that forms the main surface of the Earth. In British English, rocks are too large to pick up, but in American English, they can either be large or small: the rocks along the riverbanks
   ▪ stone a small piece of rock, found on the ground or near the surface of the ground. Speakers of American English are more likely to use the word rock than stone: The children were throwing stones into the water.
   ▪ boulder a large round piece of rock: She climbed over a few boulders at the edge of the sea.
   ▪ pebble a small smooth stone found especially on a beach or on the bottom of a river: The beach was covered with smooth white pebbles.
   ▪ fossil a rock which has the shape of an animal or plant that lived many thousands of years ago: fossils of early reptiles

boul·derBrE /ˈbəʊldə(r)/ 🔊NAmE /ˈboʊldər/ 🔊 noun

a very large rock which has been shaped by water or the weather （受水或天气侵蚀而成的）巨石；漂砾