Lithium

//ˈlɪθi.əm// name, noun

name, noun ·Moderate ·College level

Definitions

Noun
  1. 1
    The simplest alkali metal, the lightest solid element, and the third lightest chemical element (symbol Li) with an atomic number of 3 and atomic weight of 6.94. It is a soft, silvery metal. uncountable

    "The importance of lithium-ion batteries makes lithium a potentially strategic natural resource."

  2. 2
    a soft silver-white univalent element of the alkali metal group; the lightest metal known; occurs in several minerals wordnet
  3. 3
    A single atom of this element. countable
  4. 4
    Lithium carbonate or other preparations of lithium metal used as a mood stabiliser to treat manic depression and bipolar disorders. uncountable

    "It seems like his moods are better since he started taking lithium."

  5. 5
    A lithium battery. countable
Proper Noun
  1. 1
    An inactive village in Perry County, Missouri.

Synonyms

All synonyms
atomic number 3goldironleadlimetal

Example

More examples

"Lithium, sodium, potassium, rubidium, caesium and francium are alkali metals."

Etymology

Etymology 1

From New Latin lithium, from Ancient Greek λίθος (líthos, “stone”) + -ium.

Etymology 2

From one of the place's two natural mineral springs containing lithium salts.

Related phrases

Lithium Trianglelithium acetatelithium aluminium hydridelithium aluminohydridelithium aluminum hydridelithium amidelithium batterylithium borohydridelithium bromidelithium carbonatelithium chloridelithium citrate

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.