| 单词 | burr |
| 释义 | Word Frequency burr 1(bɜː) noun 1. a small power-driven hand-operated rotary file, esp for removing burrs or for machining recesses 2. a rough edge left on a workpiece after cutting, drilling, etc 3. a rough or irregular protuberance, such as a burl on a tree 4. British a burl on the trunk or root of a tree, sliced across for use as decorative veneer noun, verb 5. a variant spelling of bur verb (transitive) 6. to form a rough edge on (a workpiece) 7. to remove burrs from (a workpiece) by grinding, filing, etc; deburr Word origin C14: variant of burWord Frequency burr 2(bɜː) noun 1. phonetics an articulation of (r) characteristic of certain English dialects, esp the uvular fricative trill of Northumberland or the retroflex r of the West of England 2. a whirring sound verb 3. to pronounce (words) with a burr 4. to make a whirring sound Word origin C18: either special use of bur (in the sense: rough sound) or of imitative originWord Frequency burr 3 or bur (bɜː) noun 1. a washer fitting around the end of a rivet 2. a blank punched out of sheet metal Word origin C16 (in the sense: broad ring on a spear): variant of burrow (in obsolete sense: borough)Word Frequency burr 4 or buhr or bur (bɜː) noun 1. short for buhrstone 2. a mass of hard siliceous rock surrounded by softer rock Word origin C18: probably from bur, from its qualities of roughnessWord Frequency Burr(bɜː) noun Aaron. 1756–1836, US vice-president (1800–04), who fled after killing a political rival in a duel and plotted to create an independent empire in the western US; acquitted (1807) of treason |
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