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radiothorium

[rey-dee-oh-thawr-ee-uhm, -thohr-]

noun

Chemistry.

  1. a disintegration product of thorium.

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Word History and Origins

Origin of radiothorium1

From New Latin, dating back to 1920–25; radio-, thorium
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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The dogs are injected with graduated amounts of plutonium, radium, radiothorium or mesothorium.

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radiothonradiotoxic

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