Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. An SI unit of radioactivity equal to 1015 becquerels.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

peta- +‎ becquerel.

Examples

  • A becquerel is a frequently used measure of radiation, and a petabecquerel is a million billion becquerels.

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