LEARNit Dictionary
radon
noun
/ˈreɪdɒn/
UK
/ˈreɪdɑːn/
US
1
a chemical element. Radon is a radioactive gas used in the treatment of diseases such as cancer.
رادون, گاز رادون, عنصر رادون, عنصر شیمیایی رادون