|
|
Definition of Ionium
1. Noun. (physics dated) A supposed decomposition-product of actinium once thought to be the source of radium ¹
¹ Source: wiktionary.com
Definition of Ionium
1. an isotope of thorium [n -S]
Medical Definition of Ionium
1. Former term for thorium-230. Origin: G. Ion, going (05 Mar 2000)
Lexicographical Neighbors of Ionium
Other Resources:
