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单词 carborundum
释义

carborundumn.

Brit. /ˌkɑːbəˈrʌndəm/, U.S. /ˌkɑrbəˈrəndəm/
Forms: also with capital initial.
Origin: Formed within English, by blending. Etymons: carbon n., corundum n.
Etymology: Blend of carbon n. and corundum n.
Originally U.S.
A very hard, black, crystalline solid, used as an abrasive, in cutting and grinding tools, and as a refractory material. Frequently attributive.Carborundum is silicon carbide, SiC.A proprietary name for abrasive substances and preparations.
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society > occupation and work > materials > derived or manufactured material > synthetic resins and plastics > [noun] > other synthetics
carborundum1891
impression compound1903
Mylar1952
carbon fibre1960
Kevlar1974
1891 Eau Claire (Wisconsin) News 13 Nov. Carborundum is a term which has been applied to a manufactured substance intended to take the place of diamond dust and bort in the abrasion of hard substances.
1895 J. M. Thomson & A. G. Bloxam Bloxam's Chem. (ed. 8) 127 Silicon carbide (carborundum), SiC, is prepared by heating silicon or silica with carbon in the electric furnace.
1917 Mod. Boot & Shoe Maker 3 250 The rough scouring on the coarse sandpaper roll or the felt roller covered with carborundum.
1937 J. Steinbeck Red Pony i. 33 He whetted the shining blade a long time on a little carborundum stone.
1963 J. Osborne Dental Mech. (ed. 5) xv. 343 The sprues must next be removed with either a diamond disc or a carborundum-type ‘cut-off’ disc.
1996 J. Lanchester Debt to Pleasure (1997) 43 The grave-demeanoured white-coated propriétaire..was whisking a nine-inch chef's knife over a Carborundum stone.
2002 G. McLaren Studio Glass 25 The deepest and most radical method of cutting or carving into the glass body..involves rapidly spinning wheels made of either carborundum or diamond composite.
This entry has been updated (OED Third Edition, December 2008; most recently modified version published online March 2022).
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n.1891
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