Buprestidan

Bu*pres"ti*dan

(), n. [L. buprestis, Gr. , a poisonous beetle, which, being eaten by cattle in the grass, caused them to swell up and and die; ox, cow + to blow up, swell out.] (Zol.) One of a tribe of beetles, of the genus Buprestis and allied genera, usually with brilliant metallic colors. The larv are usually borers in timber, or beneath bark, and are often very destructive to trees.
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{

Bur

,

Burr

} (br), n. [OE. burre burdock; cf. Dan. borre, OSw. borra, burdock, thistle; perh. akin to E. bristle (burr- for burz-), or perh. to F. bourre hair, wool, stuff; also, according to Cotgrave, "the downe, or hairie coat, wherewith divers herbes, fruits, and flowers, are covered," fr. L. burrae trifles, LL. reburrus rough.] 1. (Bot.) Any rough or prickly envelope of the seeds of plants, whether a pericarp, a persistent calyx, or an involucre, as of the chestnut and burdock; a seed vessel having hooks or prickles. Also, any weed which bears burs.
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Amongst rude burs and thistles.
Milton.
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Bur and brake and brier.
Tennyson.
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2. The thin ridge left by a tool in cutting or shaping metal. See Burr, n., 2.
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3. A ring of iron on a lance or spear. See Burr, n., 4.
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4. The lobe of the ear. See Burr, n., 5.
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5. The sweetbread.
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6. A clinker; a partially vitrified brick.
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7. (Mech.) (a) A small circular saw. (b) A triangular chisel. (c) A drill with a serrated head larger than the shank; -- especially a small drill bit used by dentists.
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8. [Cf. Gael. borr, borra, a knob, bunch.] (Zol.) The round knob of an antler next to a deer's head.

[Commonly written burr.]

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Bur oak (Bot.), a useful and ornamental species of oak (Quercus macrocarpa) with ovoid acorns inclosed in deep cups imbricated with pointed scales. It grows in the Middle and Western United States, and its wood is tough, close-grained, and durable. -- Bur reed (Bot.), a plant of the genus Sparganium, having long ribbonlike leaves.
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Sun 09th December 2018