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Definition of "lithium" []

  • A soft, silvery, highly reactive metallic element that is used as a heat transfer medium, in thermonuclear weapons, and in various alloys, ceramics, and optical forms of glass. Atomic number 3; atomic weight 6.941; melting point 179°C; boiling point 1,317°C; specific gravity 0.534; valence 1. See Table at element. (noun)
  • Any of several salts of lithium, especially lithium carbonate. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "lithium" in a sentence
  • "The name lithium comes from the Greek word lithos which means stone because lithium was first discovered in rocks and the other two alkali metals were first discovered in plants."
  • "He said Nissan boasts 18 years of development experience in lithium-ion batteries, which will power the Leaf, and the company developed its first electric vehicle in 1947."
  • "Daimler has been investing heavily in lithium ion batteries, which appears to be the fuel cell of industry consensus, and it also has entered into an alliance with France's Renault and Japan's Nissan that could see the automakers share technology for electric cars and batteries."