barium
Barium (noun) means a soft, silvery-white metallic chemical element (symbol Ba, atomic number 56). Example: “Barium compounds burn with a distinctive green flame, which is why they're used in fireworks.”
How to use barium
Learner’s notesIn plain EnglishA metallic element, most familiar from fireworks (green flames) and hospital "barium" scans.
Word forms
- Plural
- bariums
Fill the gap
Can you complete this real example?
_____ compounds burn with a distinctive green flame, which is why they're used in fireworks.
Etymology
Coined in 1808 by the chemist Humphry Davy, from "baryta" (an older name for barium oxide) plus the chemical suffix "-ium."