alu·mi·num (US) or Brit al·u·min·i·um 
/əˈlu:mənəm/ /ˌæljəˈmɪnijəm/ noun
/əˈlu:mənəm/ /ˌæljəˈmɪnijəm/ noun [noncount] : a silver metal that is strong and light and that is used for making many products — often used before another noun ▪ aluminum cans ▪ aluminum foil [=a very thin sheet of aluminum that is used for covering or wrapping food]
