strontium
noun/ˈstrɑnʃiəm/
Frequency rank: #18,289 of 20,003 in the WORDED list (wordfreq data)
Meaning
a soft, silvery-yellow metallic element (atomic number 38) that reacts readily with water and air, used in fireworks and formerly in color TV tubes.
Example sentence
Scientists discovered that strontium contamination in the soil near the factory posed a serious health risk.
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