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s 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.…

chord of the arch. -- Bowstring girder, an arched beam strengthened by a tie connecting its two ends. -- Bowstring hemp (Bot.), the tenacious fiber of the Sanseviera Zeylanica, growing in India and Africa, from which bowstrings are made. Balfour.

An onomatopoetic name for a dog or its bark. -- a.

he state of being braced or tight; tension. The laxness of the tympanum, when it has lost its brace or tension. Holder.

One of the Brachiopoda, or its shell.

A verse wanting two syllables at its termination.

Having the skull short in proportion to its breadth; shortheaded; -- in distinction from dolichocephalic.

A bract on the stalk of a single flower, which is itself on a main stalk that support several flowers. Gray.

wonder; to talk boastfully; to boast; -- often followed by of; as, to brag of one's exploits, courage, or money, or of the great things one intends to do. Conceit, more rich in matter than in words, Brags of his substance, not of ornament. Shak.

Overgrown with brambles. Forlorn she sits upon the brambled floor. T. Warton.

A sword, so called from its glittering or flashing brightness. [Poetic] Tennyson. Paradise, so late their happy seat, Waved over by that flaming brand. Milton.

A small red worm or larva, used as bait for small fresh-water fish; -- so called from its red color.

The European redstart; -- so called from the red color of its tail.

Broken and angular fragments of rocks underlying alluvial deposits. Lyell.

n exposure to the air, being oxidized to bra*sil"e*in, C16H12O5, to which brazilwood owes its dyeing properties.

A diseased sheep, or its mutton.

The tree itself, which is one of considerable size, with large, lobed leaves. Cloth is made from the bark, and the timber is used for many purposes. Called also breadfruit tree and bread tree.

To burst forth; to make its way; to come to view; to appear; to dawn. The day begins to break, and night is fied. Shak. And from the turf a fountain broke, and gurgled at our feet. Wordswoorth.

t wheel turns. It is closely adapted to the curve of the wheel through about a quarter of its circumference, and prevents the escape of the water until it has spent its force upon the wheel. See Breast wheel.

with it by the breasting. The water acts on the float boards partly by impulse, partly by its weight.