Definition of strontium in English:

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Pronunciation: /ˈsträn(t)SHēəm/
Pronunciation: /ˈsträn(t)ēəm/


The chemical element of atomic number 38, a soft, silver-white metal of the alkaline earth series. Its salts are used in fireworks and flares because they give a brilliant red light. (Symbol: Sr)
Example sentences
  • The Scottish village is Strontia and the element is the alkaline earth metal strontium.
  • Because of its chemical closeness to calcium, strontium can comfortably replace the lighter element in enamel, dentin, and bone.
  • ARS developed methods using calcium to remove strontium - 90 radioactivity from wheat and milk in 1962.


Early 19th century: from strontia + -ium.

For editors and proofreaders

Syllabification: stron·ti·um

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