Definition of radon
:a heavy radioactive gaseous element formed by the decay of radium — see Chemical Elements Table
What's Trending Now
More Trending Words
Read the Latest from M-W
Recent Examples of radon from the Web
-
Next door, set back grandly from Krome Avenue behind a small park that’s slated to triple in size, sits the architecturally distinctive new police station, which replaces an old HQ that was obsolete, cramped and infested with mold and radon.
-
Exposure to air pollution, asbestos, and radon gas can also cause lung cancer, as can a history of chest radiation, like from treatment from another type of cancer.
-
The Estill County dump that accepted radioactive waste has agreed to install monitors, fund school radon testing and develop a corrective action plan, under an agreement with the Kentucky Energy and Environment Cabinet announced in November.
-
High levels of radon were found in some Centennial School District buildings, the district said this week.
-
Custom kitchen cabinetry with crown molding is also included along with a USB charging outlet in the kitchen, soft-close drawers and a passive radon ventilation system in every home.
-
Dozens of other programs also would be zeroed out entirely, including funding for radon detection, lead risk reduction, projects along the U.S.-Mexico border and environmental justice initiatives.
-
Some of those categories have been zeroed out entirely, including beach protection, radon monitoring and lead testing, the documents show.
-
The budget would also zero out money for states for dealing with such problems as non-point source pollution, radon, lead, underground storage tanks, pollution prevention and beach protection.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'radon.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of radon
International Scientific Vocabulary, from radium
RADON Defined for English Language Learners
Medical Dictionary
medical Definition of radon
:a heavy radioactive gaseous element of the group of inert gases formed by disintegration of radium and used similarly to radium in medicine
—symbol Rn
— called also
radium emanation; see Chemical Elements Table
Learn More about radon
-
See words that rhyme with radon Spanish Central: Translation of radon Nglish: Translation of radon for Spanish speakers Britannica English: Translation of radon for Arabic speakers Britannica.com: Encyclopedia article about radon
Seen and Heard
What made you want to look up radon? Please tell us where you read or heard it (including the quote, if possible).
