corundum
🇺🇸
/kəˈrʌndəm/
🇬🇧
/kəˈrʌndəm/
noun
R
A mineral that is very hard and used to make gemstones like rubies and sapphires.
The gemologist examined the corundum closely to determine its quality.
보석학자는 품질을 결정하기 위해 코런덤을 면밀히 검토했습니다.
translation
고룡암
어형 변화
Plural
corundums