Meaning

3 senses

  1. (dated)Radon-219 (21986Rn; symbol An), an isotope of radon

  2. (dated)An actinide

  3. (obsolete)Synonym of radon.

More definitions
  • any of a series of radioactive elements with atomic numbers 89 through 103

Translations

1 languages

Origin

Contraction of actinium emanation.

Contraction of actinium emanation.

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Forms

plural: actinons
Singularactinon
Pluralactinons

regular

Synonyms

11 synonyms
AnA1radonactinium emanationactonAoexactinioactineonaktonradon-219
Close in meaning
  • any of a series of radioactive elements with atomic numbers 89 through 103:actinoidactinide

See also

neighbours in the dictionary
actB1actingactionA1
actinon — meaning, examples, forms, synonyms | Krumeto