Lithium Definition

lĭthē-əm
noun
A soft, silver-white, metallic chemical element, one of the alkali metals and the lightest metal: used in thermonuclear explosives, in metallurgy, etc.: symbol, Li; at. no. 3
Webster's New World
Any of various antidepressants containing lithium, esp. lithium carbonate.
Webster's New World
Its name comes from the Greek word "lithos" which means "stone."
YourDictionary
Its density is half that of water, it is corrosive, and it is very flammable.
YourDictionary
It is not found free in nature but is found in igneous rocks, in water from mineral springs, and in seawater or brine. Traces of lithium are also found in plants, plankton, invertebrates and vertebrates.
YourDictionary
Synonyms:
  • atomic number 3
  • li
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Other Word Forms of Lithium

Noun

Singular:
lithium
Plural:
lithiums

Origin of Lithium

  • From New Latin lithium, from lithia (in reference to Ancient Greek λίθος (lithos, “stone")) + -ium.

    From Wiktionary

  • From lithia

    From American Heritage Dictionary of the English Language, 5th Edition

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