TOP

Definition of corundum noun from the Oxford Advanced Learner's Dictionary

corundum

noun
 
/kəˈrʌndəm/
 
/kəˈrʌndəm/
[uncountable]
jump to other results
  1. an extremely hard form of alumina found in rubies and sapphires. Corundum is used as an abrasive.
    Word Originearly 18th cent.: from Tamil kuruntam and Telugu kuruvindam.
See corundum in the Oxford Advanced American Dictionary
trait
noun
 
 
From the Word list
Oxford 5000
B2
Oxford Learner's Dictionaries Word of the Day