alumina

Từ điển WordNet v3.1 - WordNet Dictionary

noun

any of various forms of aluminum oxide occurring naturally as corundum
• Syn:
aluminum oxide, aluminium oxide
• Hypernyms:
corundom, corundum
• Hyponyms:
alundum
• Substance Holonyms:
furnace lining, refractory

• Từ đồng nghĩa / Synonyms:
  aluminum oxide, aluminium oxide