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ionium

noun io·ni·um \ ī-ˈō-nē-əm \
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Definition of ionium

: a natural radioactive isotope of thorium having a mass number of 230

Origin and Etymology of ionium

ion; from its ionizing action

Medical Dictionary

ionium

noun io·ni·um \ ī-ˈō-nē-əm \

medical Definition of ionium

: a natural radioactive isotope of thorium having a mass number of 230

Learn More about ionium

  1. Britannica.com: Encyclopedia article about ionium

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