bort

UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/bɔːt/US:USA pronunciation: respellingUSA pronunciation: respelling(bôrt)


WordReference Random House Unabridged Dictionary of American English © 2026
bort  (bôrt),USA pronunciation n. 
  1. Mineralogylow-quality diamond, in granular aggregate or small fragments, valuable only in crushed or powdered form, esp. for industrial use as an abrasive.
Also, boart, bortz  (bôrts).USA pronunciation Cf. ballas, carbonado2. 
  • 1615–25; apparently metathetic variant of *brot (Old English gebrot fragment); akin to Middle English brotel brittle, Old Norse brot fragment
bort′y, adj. 

Collins Concise English Dictionary © HarperCollins Publishers::
bort, boart / bɔːt/bortz / bɔːts/
  1. an inferior grade of diamond used for cutting and drilling or, in powdered form, as an industrial abrasive
Etymology: Old English gebrot fragment; related to Old Norse brot piece, Old High German broz bud
'bort' also found in these entries (note: many are not synonyms or translations):
board - boart - border

Forum discussions with the word(s) "bort" in the title:


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