strontia
/ˈstrɑnʃiə/
noun
- A white powder that is a compound of strontium, used in fireworks and flares to produce a bright red color.
- The fireworks factory used strontia to create the red bursts in the sky.
- Chemists study strontia for its use in special glass and ceramics.
- Strontia is added to signal flares to make them visible from far away.