radon
noun
\
Definition of radon
: a heavy radioactive gaseous element formed by the decay of radium — see Chemical Elements Table
Examples of radon in a Sentence
Recent Examples on the Web
One out of every 15 houses in suburban America is thought to have unacceptably high radon levels. — Houston Chronicle, "YouDocs0514," 13 May 2018 The school board approved spending up to $50,000 on radon testing at a meeting Monday, but Tijerina said the projected testing cost would be around $35,600. — Sarah Freishtat, Aurora Beacon-News, "East Aurora to test buildings for radon," 17 Apr. 2018 The remaining 15 percent of the funds raised would be used to assist homeowners whose homes are sinking in New Haven and others dealing with lead and radon abatement. — Sandra Gomez-aceves, courant.com, "Capitol Roundup: Crumbling Foundations, Hartford Bailout Revision Bills Get Final Approval," 10 May 2018 But unlike cosmic radiation or radon gas, plutonium can lodge itself inside the body and deliver tissue-damaging alpha particles over a lifetime. — Ted Sickinger, OregonLive.com, "Police looking for shooter after one injured in Keizer," 22 Apr. 2018 East Aurora School District 131 is set to test buildings for radon. — Sarah Freishtat, Aurora Beacon-News, "East Aurora to test buildings for radon," 17 Apr. 2018 But unlike cosmic radiation or radon gas, plutonium can lodge itself inside the body and deliver tissue damaging alpha particles over a lifetime. — Ralph Vartabedian, latimes.com, "Blowing in the wind: Plutonium at former nuclear weapons site," 16 Apr. 2018 At least $150 million is slated to be spent addressing safety problems, including lead paint, radon, outdated fire alarms and leaking roofs. — Bethany Barnes, OregonLive.com, "Where's the strategy on health and safety that Portland Public Schools promised?," 4 Apr. 2018 The test kits will be available to Middletown homeowners who have not previously tested for radon. — Shawn R. Beals, Courant Community, "Middletown Health Department Offering Free Radon Test Kits," 7 Mar. 2018These 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.
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More Definitions for radon
radon
noun
English Language Learners Definition of radon
: a radioactive element which is a gas that is used medically in cancer treatments
See the full definition for radon in the English Language Learners Dictionary
radon
noun
\
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
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