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Word of the Day Tuesday, June 9, 2026

radon

/ˈreɪdɒn/ noun · British & US
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What does radon mean?

noun

A chemical element with the symbol Rn and atomic number 86, a noble gas that is a radioactive, colorless, odorless, tasteless, and highly radioactive gas.

Example

"The house was tested for radon levels to ensure the family's safety."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for radon

Rhymes with radon

Etymologically related