Strontium
/ˈstɹɒn.ti.əm/ noun
noun ·Rare ·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.