aluminum
noun
alu·mi·num
ə-ˈlü-mə-nəm 
: 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 foil
The 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 Hersch
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
Ken WellsExamples of aluminum in a Sentence
Recent Examples on the Web
The government also plans to raise tariffs on semiconductors, lithium-ion batteries, solar cells, and some steel and aluminum products to tamp down on competition.
—William Gavin, Quartz, 22 May 2024
Tariffs on certain Chinese steel and aluminum products will climb to 25% this year.
—The Editorial Board, Orange County Register, 17 May 2024
See all Example Sentences for aluminum 
William Gavin, Quartz, 22 May 2024
Tariffs on certain Chinese steel and aluminum products will climb to 25% this year.
—The Editorial Board, Orange County Register, 17 May 2024
See all Example Sentences for aluminum
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“Aluminum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/aluminum. Accessed 31 May. 2024.
Copy CitationKids Definition
aluminum
noun
alu·mi·num
ə-ˈlü-mə-nəm
: a silver-white malleable light element that conducts electricity and heat well, is highly resistant to oxidation, and is the most abundant metal in the earth's crust see element
Medical Definition
aluminum
noun
alu·mi·num
ə-ˈlü-mə-nəm
often attributive
: 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
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