bauxite

Từ điển WordNet v3.1 - WordNet Dictionary

noun

a clay-like mineral;
the chief ore of aluminum;
composed of aluminum oxides and aluminum hydroxides;
used as an abrasive and catalyst
• Derivationally related forms:
bauxitic
• Hypernyms:
mineral
• Substance Meronyms:
aluminum, aluminium, Al, atomic number 13, gallium,
Ga, atomic number 31, gibbsite