剛玉 [刚－]

Jyutping gong1 juk6
Pinyin gāng yù

Definitions (CC-CEDICT)
  1. corundum (mineral)
Definitions (Wiktionary)
  1. noun
    corundum
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）