'corundom' definitions:

Definition of 'corundom'

(from WordNet)
noun
Very hard mineral used as an abrasive [syn: corundom, corundum]

Definition of 'corundom'

From: GCIDE
  • corundom \corundom\ n. a very hard mineral used as an abrasive; same as corundun.
  • Syn: corundum. [WordNet 1.5]