Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun radioactive cobalt (especially when used as a tracer)

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

From radio- +‎ cobalt

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Examples

  • Then came poison gas, and fission bombs, and fission-fusion bombs, and a possible fissionfusion-radiocobalt [?] bomb.

    A Gift From Earth Niven, Larry 1968

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