| Meaning | Any of several compounds of barium. | |
|---|---|---|
| Narrower | barium dioxide, barium peroxide | A white toxic powder obtained by heating barium oxide in air |
| barium hydroxide | white poisonous crystals | |
| barium monoxide, barium oxide, barium protoxide | An oxide of barium | |
| Broader | barium, Ba, atomic number 56 | A soft silvery metallic element of the alkali earth group |
| Adjectives | barytic | of or relating to or containing baryta |
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