Boulder-canyon
a canyon of the Colorado River between Arizona and Nevada, above Boulder Dam.
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- Boulder-clay
a glacial deposit consisting chiefly of unstratified clay with embedded boulders. Historical Examples Fragments of Earth Lore James Geikie The Cruise of the Betsey Hugh Miller Prehistoric Man W. L. H. Duckworth The Cruise of the Betsey Hugh Miller Fragments of Earth Lore James Geikie Hugh Miller William Keith Leask The Cruise of the Betsey […]
- Boulder-dam
a dam on the Colorado River, on the boundary between SE Nevada and NW Arizona. 726 feet (221 meters) high; 1244 feet (379 meters) long. noun the former name (1933–47) of Hoover Dam
- Boulder-raspberry
Rocky Mountain flowering raspberry. a shrub, Rubus deliciosus, of Colorado, having large white flowers and purple fruit.
- Bouldering
pavement made with small boulders. noun rock climbing on large boulders or small outcrops either as practice or as a sport in its own right
- Boule
Also called birne. a cylindrical lump of material for synthetic gems, made by the Verneuil process. a metal ball, usually made out of steel, used in pétanque. Sometimes, boules. pétanque. buhl. the legislative assembly of modern Greece. (sometimes lowercase) a state legislative, advisory, or administrative council in ancient Greece. elaborate inlaid work of woods, metals, […]