Exradio
noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 Obsolete form of radon (“radon-222”), an isotope of radon (element 86). alt-of, obsolete, uncountable
Synonyms
All synonymsEtymology
From Latin ex (“from”) + radio (“radium”).
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.