- a detached and rounded or worn rock, especially a large one.
Origin of boulder
Examples from the Web for bowlder
Historical Examples of bowlder
It was like throwing pebbles at the bowlder in the Malad, the day before.Good Indian
B. M. Bower
"Give Mrs. Bowlder my regards," said the journalist, comprehending the symbolism.The Gentleman From Indiana
At that I looked to the other side of the bowlder, and there was my friend of the monkey jacket.Capt'n Davy's Honeymoon
"I won't waste any arrows on him," said the boy on the top of the bowlder.Two Arrows
William O. Stoddard
Already the bowlder had been pushed 371 out at the top many inches.Out of the Depths
Robert Ames Bennet
- a smooth rounded mass of rock that has a diameter greater than 25cm and that has been shaped by erosion and transported by ice or water from its original position
- geology a rock fragment with a diameter greater than 256 mm and thus bigger than a cobble
Word Origin for boulder
1670s, variant of Middle English bulder (c.1300), from a Scandinavian source akin to Swedish dialectal bullersten "noisy stone" (large stone in a stream, causing water to roar around it), from bullra "to roar" + sten "stone." Or the first element might be from *buller- "round object," from Proto-Germanic *bul-, from PIE *bhel- (2) "to inflate, swell" (see bole).