| NOUN | substance | barium peroxide, barium dioxide | a white toxic powder obtained by heating barium oxide in air |
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| Meaning | A white toxic powder obtained by heating barium oxide in air. | |
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| Synonym | barium dioxide | |
| Broader | baryta | Any of several compounds of barium |
| Spanish | dióxido de bario, peróxido de bario | |
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