strontium
/ˈstrɑnʃiəm/
noun
- A soft, silver-white metallic chemical element. It is used in fireworks and flares to produce a bright red color, and in some types of glass and ceramics.
- Fireworks get their deep red color from strontium compounds.
- Strontium is sometimes added to glass to make it stronger for television screens.
- The scientist carefully measured the amount of strontium in the mineral sample.