Artificial intelligent assistant

corindon

corindon Min.
  (kəʊˈrɪndɒn)
  [F. corindon, corundum.]
  An early name of Corundum or Adamantine Spar; by some mineralogists used as a name of the species: see corundum 2.

1802 W. Nicholson Jrnl. I. 151 Corindon or Adamantine Spar from Philadelphia. 1829 Nat. Philos. I. Gloss. (Useful Knowl. Soc.), Corundum, or Corindon, a stone found in India and China.

Oxford English Dictionary

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