🇩🇪German Source WordCode: DE

Korund

Pronunciation / Transliteration: /koˈʁʊnt/

🇬🇧 Direct English Meaning:
Corundum/kəˈrʌn.dəm/
nounCEFR C2 (Proficient)Top #45000 frequency
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🇩🇪 Example Sentence in German:

"Rubine und Saphire sind edle Varietäten des Minerals Korund."

Comprehensive Definitions & Senses

1 sense
As noun
  1. 1

    A crystalline form of aluminum oxide that is noted for its extreme hardness and is used as an abrasive and as gemstone varieties such as ruby and sapphire.

    "Because of its exceptional hardness on the Mohs scale, industrial-grade corundum is frequently used to manufacture heavy-duty cutting tools and sandpaper."

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Linguistic Origin & Historical Etymology

Derived from the Tamil word kurundam, meaning ruby, via the Sanskrit kuruvinda. The term entered European scientific nomenclature in the late 18th century as mineralogists sought to classify crystalline aluminum oxide.

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