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 — see element table
Explore Merriam-Webster
Origin and Etymology of aluminum
New Latin, from alumina
First Known Use: 1810
ALUMINUM Defined for English Language Learners
aluminum
playDefinition of aluminum for English Language Learners
-
: a silver metal that is strong and light and that is used for making many products
ALUMINUM Defined for Kids
aluminum
playDefinition of aluminum for Students
: 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
Medical Dictionary
aluminum
playMedical 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 element table
Learn More about aluminum
-
Spanish Central: Translation of aluminum Nglish: Translation of aluminum for Spanish speakers Britannica English: Translation of aluminum for Arabic speakers Britannica.com: Encyclopedia article about aluminum
Seen and Heard
What made you want to look up aluminum? Please tell us where you read or heard it (including the quote, if possible).
Writing? Check your grammar now!