Strontium
//ˈstɹɒn.ti.əm// noun
noun ·Uncommon ·Advanced level
Definitions
Noun
- 1 The metallic chemical element (symbol Sr) with an atomic number of 38. It is a soft, reactive, silvery alkaline earth metal. uncountable, usually
- 2 a soft silver-white or yellowish metallic element of the alkali metal group; turns yellow in air; occurs in celestite and strontianite wordnet
- 3 A single atom of this element. countable, usually
Example
More examples"Strontium 90: One of the radioisotopes of strontium; part of radioactive fallout, harmful to human health."
Etymology
Coined by British chemist Humphry Davy in 1808, after the earlier term strontianite, for the name of the Scottish town Strontian.
Related phrases
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.