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The Collaborative International Dictionary
Bowlder

Bowlder \Bowl"der\, Boulder \Boul"der\, n. [Cf. Sw. bullra to roar, rattle, Dan. buldre, dial. Sw. bullersteen larger kind of pebbles; perh. akin to E. bellow.]

  1. A large stone, worn smooth or rounded by the action of water; a large pebble.

  2. (Geol.) A mass of any rock, whether rounded or not, that has been transported by natural agencies from its native bed. See Drift.

    Bowlder clay, the unstratified clay deposit of the Glacial or Drift epoch, often containing large numbers of bowlders.

    Bowlder wall, a wall constructed of large stones or bowlders.

Wiktionary
bowlder

n. (dated form of boulder English)

WordNet
bowlder

n. a large smooth mass of rock detached from its place of origin [syn: boulder]

Usage examples of "bowlder".

East of the central kiva, and between it and a large bowlder, there was another, of which only a part now remains.

The cliff formed one side of the room and the bowlder acted as a roof.

On the highest point of the bowlder shown on the right of the plan there is a fragment of compacted sheep dung and soil, which is now 6 feet above the ground.

Petroglyphs are quite numerous, and one small bowlder to the left of and next to the kiva is covered with cups, dots, and carvings.

The plan of the kiva, which occurs in the center, was somewhat marred by a large bowlder, which must have projected into it, but apparently no attempt was made to dress off the projecting point.

The south wall is built over a large bowlder, and a tunnel or opening passes under this to a rounded vertical shaft, about a foot in diameter, which opens to the air.

The roof of the tunnel was the underside of the large bowlder mentioned, and the stick lintel was of no use except to show that no fire could have been built under it.

The tunnel was made at the time the wall was erected, and passes under the bowlder over which the wall was built.

A little east of the opening, inside the room, the bowlder shows through the wall, projecting slightly beyond its face.

A small fragment of this masonry is still left on the upper surface of the bowlder and is shown in the section.

In this case, however, there was no convenient bowlder, and the roof of the tunnel has broken down so that the method of support can not be accurately determined.

Dancret, upon whom the wine seemed to have had little effect, settled down on a bowlder just beyond the fire and began his watch, rifle at readiness.

At the barrier the Sagoths clambered up the steep side with truly apelike agility, while behind them the haughty queen rose upon her wings with her two frightful dragons close beside her, and settled down upon the largest bowlder of them all in the exact center of that side of the amphitheater which is reserved for the dominant race.

The opening was comparatively small, so that after considerable effort I was able to lug up a bowlder from the valley below which entirely blocked it.

Thus, with food and bedding I returned to my lair, where after a meal of raw meat, to which I had now become quite accustomed, I dragged the bowlder before the entrance and curled myself upon a bed of grasses--a naked, primeval, cave man, as savagely primitive as my prehistoric progenitors.