Actineon

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Obsolete form of actinon (“radon-219”), an isotope of radon. alt-of, obsolete, uncountable

Synonyms

All synonyms
actinon

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.