Vocab Bloom Hub

corundom

/kəˈrʌn.dəm/

1 entry

noun

/kəˈrʌn.dəm/C2formal
  • ruОчень твердый минерал, состоящий из оксида алюминия, используемый как абразив и в производстве драгоценных камней, таких как рубин и сапфир.

A very hard mineral composed of aluminum oxide, used as an abrasive and in the production of gemstones such as ruby and sapphire.

uncountable

  1. C1formal

    An extremely hard mineral composed of aluminum oxide, often used as an abrasive or in gemstones.

    ruТвёрдый минерал

    • Corundum is one of the hardest naturally occurring minerals.
    • The industrial abrasive is made from crushed corundum.
    • Sapphires and rubies are both varieties of corundum.

    Synonymsalundumemery