- another name for actinide
WordReference Random House Unabridged Dictionary of American English © 2026
ac•ti•non
(ak′tə non′),USA pronunciation n. [Chem.]
- Chemistrya chemically inert, gaseous, short-lived isotope of radon that is a member of the actinium series. Symbol: An;
at. no.: 86;
at. wt.: 219. Also called actinium emanation.
- Neo-Latin; see actinium, -on2
- 1925–30
Collins Concise English Dictionary © HarperCollins Publishers::
actinon /ˈæktɪˌnɒn/ n
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'actinon' also found in these entries (note: many are not synonyms or translations):
