aluminum

noun, often attributive
alu·​mi·​num | \ ə-ˈlü-mə-nəm How to pronounce aluminum (audio) \

Definition of aluminum

: a silver-white metallic chemical element with atomic number 13 that has good electrical and thermal conductivity, high reflectivity, and resistance to oxidation often used before another noun aluminum foilThe sweet spot, the point in a bat where vibration supposedly is least, is said to be two times larger on an aluminum bat than on a wood one.— Hank HerschBefore he evacuated, Mr. Gonzales tied the boat down with four gigantic ropes and all the storm could do was knock it off the construction blocks. He slowly climbs a battered aluminum ladder propped up on the port side.— Ken Wells — see Chemical Elements Table

Examples of aluminum in a Sentence

Recent Examples on the Web That could be caused by the building materials used at the time; some insulation of the 1920s and 1930s contained reflective aluminum or copper surfaces (see tinyurl.com/3vs5reev). Steve Alexander, Star Tribune, 13 June 2021 In a Silver Spring yard, Williams has unfurled nylon nets between tall aluminum poles. Christina Larson, baltimoresun.com, 11 June 2021 The Invincibowl is made from aerospace-grade aluminum, fits all 14mm joint bongs, and comes with a lifetime guarantee. A.j. Herrington, Forbes, 11 June 2021 In a Silver Spring, Maryland, yard, Ms. Williams has unfurled nylon nets between tall aluminum poles. Christina Larson, The Christian Science Monitor, 10 June 2021 Each piece is oven-and broiler-safe to withstand temperatures of up to 500 degrees Fahrenheit and constructed with aluminum. Nicole Briese, USA TODAY, 8 June 2021 The last use is thanks to a first-of-its-kind aluminum and titanium mount that the watches can be fitted into once the strap has been removed. Bryan Hood, Robb Report, 8 June 2021 The same is true for metals used elsewhere in the car, such as steel, aluminum and copper, which have also seen in prices traded in public markets rising. Chris Isidore, CNN, 7 June 2021 The 28-inch fire pit is made from durable aluminum that's high-temperature heat-resistant and all-weather resistant to stand against the elements. Lily Gray, Southern Living, 3 June 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'aluminum.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of aluminum

1812, in the meaning defined above

History and Etymology for aluminum

New Latin, from alumina

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Learn More About aluminum

Time Traveler for aluminum

Time Traveler

The first known use of aluminum was in 1812

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Statistics for aluminum

Last Updated

17 Jun 2021

Cite this Entry

“Aluminum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/aluminum. Accessed 22 Jun. 2021.

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More Definitions for aluminum

aluminum

noun

English Language Learners Definition of aluminum

: a silver metal that is strong and light and that is used for making many products

aluminum

noun
alu·​mi·​num | \ ə-ˈlü-mə-nəm How to pronounce aluminum (audio) \

Kids Definition of aluminum

: a silver-white light metallic chemical element that is easily worked, conducts electricity well, resists weathering, and is the most plentiful metal in the earth's crust

aluminum

noun, often attributive
alu·​mi·​num | \ ə-ˈlü-mə-nəm How to pronounce aluminum (audio) \

Medical Definition of aluminum

: a bluish silver-white malleable ductile light trivalent metallic element that has good electrical and thermal conductivity, high reflectivity, and resistance to oxidation and is the most abundant metal in the earth's crust where it always occurs in combination symbol Al — see Chemical Elements Table

More from Merriam-Webster on aluminum

Nglish: Translation of aluminum for Spanish Speakers

Britannica English: Translation of aluminum for Arabic Speakers

Britannica.com: Encyclopedia article about aluminum

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