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WordReference Random House Learner's Dictionary of American English © 2024al•u•min•i•um /ˌælyəˈmɪniəm/USA pronunciation n. [uncountable] Chiefly Brit.- British Terms aluminum.
WordReference Random House Unabridged Dictionary of American English © 2024al•u•min•i•um (al′yə min′ē əm),USA pronunciation n., adj. [Chiefly Brit.]- British Termsaluminum.
Collins Concise English Dictionary © HarperCollins Publishers:: aluminium /ˌæljʊˈmɪnɪəm/, US Canadian aluminum /əˈluːmɪnəm/ n - a light malleable ductile silvery-white metallic element that resists corrosion; the third most abundant element in the earth's crust (8.1 per cent), occurring only as a compound, principally in bauxite. It is used, esp in the form of its alloys, in aircraft parts, kitchen utensils, etc. Symbol: Al; atomic no: 13; atomic wt: 26.9815; valency: 3; relative density: 2.699; melting pt: 660.45°C; boiling pt: 2520°C
a•lu•mi•num /əˈlumənəm/USA pronunciation n. [uncountable]- Chemistrya silver-white metallic element, light in weight and not easily corroded or tarnished, used in alloys and for lightweight products.
WordReference Random House Unabridged Dictionary of American English © 2024a•lu•mi•num (ə lo̅o̅′mə nəm),USA pronunciation n. - Chemistrya silver-white metallic element, light in weight, ductile, malleable, and not readily corroded or tarnished, occurring combined in nature in igneous rock, shale, clay, and most soil: used in alloys and for lightweight utensils, castings, airplane parts, etc. Abbr.: alum.; Symbol: Al;
at. wt.: 26.98;
at. no.: 13;
sp. gr.: 2.70 at 20°C.
adj. - Chemistryof, pertaining to, or containing aluminum:an aluminum frying pan.Also,[esp. Brit.,] aluminium.
- Neo-Latin, alteration, by Humphry Davy, of alumium, which was first proposed; aluminium formed after other metals in -ium. See alumina, -ium
- 1812
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