bur Meaning, Definition & Usage

  1. noun seed vessel having hooks or prickles
    burr.
  2. noun small bit used in dentistry or surgery
    burr.
  3. verb remove the burrs from
    burr.

WordNet

Bur, Burr noun (Also<
  • Bur
  • Burr
)
Etymology
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.
Definitions
  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. Also, any weed which bears burs.
    Amongst rude burs and thistles. Milton.
    Bur and brake and brier. Tennyson.
  2. The thin ridge left by a tool in cutting or shaping metal. See Burr, n., 2.
  3. A ring of iron on a lance or spear. See Burr, n., 4.
  4. The lobe of the ear. See Burr, n., 5.
  5. The sweetbread.
  6. A clinker; a partially vitrified brick.
  7. (Mech.) (a) A small circular saw. (b) A triangular chisel. (c) A drill with a serrated head larger than the shank; -- used by dentists.
  8. Cf. Gael. borr, borra, a knob, bunch. (Zoöl.) The round knob of an antler next to a deer's head. Commonly written burr.

Webster 1913