Alundum

//əˈlʌn.dəm// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    alumina, especially an abrasive product made from fused alumina uncountable
  2. 2
    a substance made of fused alumina wordnet

Etymology

Blend of alumina + corundum.

Related phrases

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.