aluminum

UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/əˈluːmɪnəm/US:USA pronunciation: IPA and respellingUSA pronunciation: IPA/əˈlumənəm/ ,USA pronunciation: respelling(ə lo̅o̅mə nəm)


WordReference Random House Learner's Dictionary of American English © 2025
a•lu•mi•num /əˈlumənəm/USA pronunciation   n. [uncountable]
  1. 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 © 2025
a•lu•mi•num  (ə lo̅o̅mə nəm),USA pronunciation n. 
  1. 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. 
  1. 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
al•u•min•ic  (al′yə minik),USA pronunciation adj. 
WordReference Random House Learner's Dictionary of American English © 2025
al•u•min•i•um /ˌælyəˈmɪniəm/USA pronunciation   n. [uncountable] Chiefly Brit.
  1. British Terms aluminum.

WordReference Random House Unabridged Dictionary of American English © 2025
al•u•min•i•um  (al′yə minē əm),USA pronunciation n., adj. [Chiefly Brit.]
  1. British Termsaluminum.

Collins Concise English Dictionary © HarperCollins Publishers::
aluminium / ˌæljʊˈmɪnɪəm/, aluminum / əˈluːmɪnəm/
  1. 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
'aluminum' also found in these entries (note: many are not synonyms or translations):

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