thoron

[ thawr-on, thohr- ]

nounChemistry.
  1. a radioactive isotope of radon, produced by the disintegration of thorium. Symbol: Tn; atomic weight: 220; atomic number: 86.

Origin of thoron

1
First recorded in 1925–30; thor(ium) + -on2

Words Nearby thoron

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How to use thoron in a sentence

  • But the crusaders embarrassed themselves with the siege of the castle of thoron.

    The History of Chivalry | G. P. R. James

British Dictionary definitions for thoron

thoron

/ (ˈθɔːrɒn) /


noun
  1. a radioisotope of radon that is a decay product of thorium. Symbol: Tn or 220 Rn; atomic no: 86; half-life: 54.5s

Origin of thoron

1
C20: from thorium + -on

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