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EnglishTHE SCHOLAR'S LEXICON

corundum

/kuh-ruhn-duhm/US // kəˈrʌn dəm //UK // (kəˈrʌndəm) //

刚玉,刚玉石,金刚石,金刚砂

Related Words

jewel珠宝,珠宝首饰,珠宝玉石,珠宝店gem宝石,瑰宝,宝,宝石类rhinestone水钻,水石,水鑽,瑞金paragon准则,准则性,准则性的ice冰,结冰,制冰,冰冰lozenge锭剂,菱形片,菱形,锭子rock岩石,摇滚,石头,磐石zircon锆石,锆英石,锆矿rhombus菱形,菱形图,菱形图案,菱形的allotrope猿人,猿类,猿猴,猿人的故事solitaire单人纸牌游戏,接龙,单人纸牌,接龙游戏brilliant精彩纷呈,辉煌,精采的,灿烂bort堡垒,堡礁,堡特jager爵士乐,爵士舞者,爵士乐手,爵士舞

Definitions

n.名词 noun
  1. 1
    • : a common mineral, aluminum oxide, Al2O3, notable for its hardness: transparent varieties, as sapphire and ruby, are used as gems, other varieties as abrasives: often made synthetically.

Synonyms & Antonyms

as indiamond
Synonyms
gem宝石,瑰宝,宝,宝石类jewel珠宝,珠宝首饰,珠宝玉石,珠宝店rhinestone水钻,水石,水鑽,瑞金allotrope猿人,猿类,猿猴,猿人的故事ice冰,结冰,制冰,冰冰lozenge锭剂,菱形片,菱形,锭子paragon准则,准则性,准则性的rhombus菱形,菱形图,菱形图案,菱形的rock岩石,摇滚,石头,磐石solitaire单人纸牌游戏,接龙,单人纸牌,接龙游戏zircon锆石,锆英石,锆矿bort堡垒,堡礁,堡特brilliant精彩纷呈,辉煌,精采的,灿烂jager爵士乐,爵士舞者,爵士乐手,爵士舞

Examples

  • Pliny says, corundum was used in the form of a splinter fixed in an iron style.

  • The stones have been rubbed into shape apparently by corundum.

  • This is true whether it has reference to a grindstone, emery, corundum wheel, or a plain oil stone.

  • Corundum and pure emery are ores that are very rich in aluminum, containing about fifty-four per cent.

  • Corundum is the hardest substance known, next to the diamond.

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