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actinon

   Also found in: Medical, Financial, Acronyms, Encyclopedia, Wikipedia, Hutchinson 0.03 sec.
ac·ti·non  (kt-nn)
n.
A radioactive, inert, gaseous isotope of radon, with a half-life of 3.92 seconds.
[actin(ium) + -on.]
actinon [ˈæktɪˌnɒn]
n
1. (Chemistry / Elements & Compounds) a radioisotope of radon that is a decay product of radium. Symbol: An or 219Rn; atomic no.: 86; half-life: 3.92s
2. (Chemistry / Elements & Compounds) another name for actinide
[New Latin, from actinium + -on]
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.actinonactinon - any of a series of radioactive elements with atomic numbers 89 through 103
actinide, actinoid
group, grouping - any number of entities (members) considered as a unit


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