cobalt
Americannoun
noun
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A silvery-white, hard, brittle metallic element that occurs widely in metal ores. It is used to make magnetic alloys, heat-resistant alloys, and blue pigment for ceramics and glass. Atomic number 27; atomic weight 58.9332; melting point 1,495°C; boiling point 2,900°C; specific gravity 8.9; valence 2, 3.
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See Periodic Table
Etymology
Origin of cobalt
1675–85; < German Kobalt, variant of Kobold kobold
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
France is to keen to maintain a relationship with the strategically located nation rich in nickel and cobalt in the face of the growing influence of countries such as China, India and, more recently, Russia.
From Barron's
France is keen to maintain a relationship with the strategically located nation rich in nickel and cobalt in the face of the growing influence of countries such as China, India and, more recently, Russia.
From Barron's
Lithium, cobalt, copper, and rare earths are now central to clean energy systems, digital infrastructure, and defense technologies.
From Barron's
India is cashing in on the growing "e-waste" sector -- pulling critical minerals like lithium and cobalt, which are needed to make everything from smartphones to fighter jets and electric cars, from everyday electronics.
From Barron's
That includes providing billions of dollars in financing to help the U.S. build a strategic reserve of products including lithium, cobalt and nickel.
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
