Definitions for alumina
əˈlu mə nəalu·mi·na

Princeton's WordNetRate this definition:0.0 / 0 votes

1. alumina, aluminum oxide, aluminium oxidenoun

   any of various forms of aluminum oxide occurring naturally as corundum

WiktionaryRate this definition:0.0 / 0 votes

1. aluminanoun

   Aluminum oxide used especially in mining, material sciences and ceramics.

2. Etymology: From (combining form of) alumen + -a.

WikipediaRate this definition:0.0 / 0 votes

1. alumina

   Aluminium oxide is a chemical compound of aluminium and oxygen with the chemical formula Al2O3. It is the most commonly occurring of several aluminium oxides, and specifically identified as aluminium oxide. It is commonly called alumina and may also be called aloxide, aloxite, or alundum in various forms and applications. It occurs naturally in its crystalline polymorphic phase α-Al2O3 as the mineral corundum, varieties of which form the precious gemstones ruby and sapphire. Al2O3 is significant in its use to produce aluminium metal, as an abrasive owing to its hardness, and as a refractory material owing to its high melting point.

ChatGPTRate this definition:0.0 / 0 votes

1. alumina

   Alumina, also known as aluminum oxide, is a white, crystalline substance that is commonly used in the production of aluminum. It is an inorganic compound with the chemical formula Al2O3, and it is also used as an abrasive due to its hardness and in the production of refractory materials due to its high melting point. Additionally, Alumina is used in ceramics and glass production, and it serves as a catalyst or a catalyst support in some industrial chemical processes.

Webster DictionaryRate this definition:0.0 / 0 votes

1. Aluminanoun

   one of the earths, consisting of two parts of aluminium and three of oxygen, Al2O3

2. Etymology: [L. alumen, aluminis. See Alum.]

Chambers 20th Century DictionaryRate this definition:0.0 / 0 votes

1. Alumina

   al-ū′min-a, Alumine, al′ū-min, n. one of the earths, the characteristic ingredient of common clay—the oxide of aluminium.—adj. Alū′minous, containing alum or alumina. [L. alumen, alum.]

Matched Categories

1. • Corundum

How to pronounce alumina?

1. Alex

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   David

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   Mark

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   Daniel

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   Libby

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   Mia

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How to say alumina in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of alumina in Chaldean Numerology is: 3

2. Pythagorean Numerology

   The numerical value of alumina in Pythagorean Numerology is: 8

Examples of alumina in a Sentence

1. Alumina Ltd:

   Alumina considers that Alcoa's demerger proposal triggers consent and 'first offer' rights in favour of Alumina under the AWAC arrangements, alumina will vigorously defend the proceedings brought by Alcoa.

2. Vedanta CEO Tom Albanese:

   We had a number of cost efforts which did not kick in in the third quarter which will be reflected now. Also, we will get the benefit of lower alumina costs ... Our cost structure will be better in Q4 than in Q3.

3. Chen Zhanheng:

   Traders go through all kinds of channels and make false product declarations at customs - marking it as alumina or even washing powder.

4. Alcoa Worldwide Alumina and Chemicals:

   Alumina considers that Alcoa's demerger proposal triggers consent and 'first offer' rights in favor of Alumina under the AWAC arrangements. Alumina will vigorously defend the proceedings brought by Alcoa.

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References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=alumina
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Alumina
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Alumina
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Webster Dictionary
   https://www.merriam-webster.com/dictionary/alumina
6. ^ Chambers 20th Century Dictionary
   https://www.gutenberg.org/files/37683/37683-h/37683-h.htm#:~:text=alumina