stron‧ti‧um /ˈstrɒntiəm $ ˈstrɑːn-/
noun [uncountable][
Date: 1800-1900;
Origin: Strontian, village in Scotland where a substance formed from strontium was discovered]
a soft silver-white metal that is used to make
fireworks. It is a chemical
element: symbol Sr
[TahlilGaran] Dictionary of Contemporary English ▲