exradio

E1X8R1A1D2I1O1

A form of radon — The chemical element (symbol Rn, formerly Ro) with atomic number 86. It is an odorless, colorless, chemically inert but radioactive noble gas.

Scrabble 15
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Meanings

nounexradio (uncountable)
  1. obsoleteuncountableObsolete form of radon (“radon-222”), an isotope of radon (element 86).

Synonyms & antonyms

Also see
radon

Origin

From Latin ex (“from”) + radio (“radium”).

Full word history & related roots →
Cite this entry
APA

exradio. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/exradio

MLA

“exradio.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/exradio. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “exradio,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/exradio.

Source: exradio on Wiktionary, CC BY-SA 4.0.