1. radon

noun. ['ˈreɪˌdɑːn'] a radioactive gaseous element formed by the disintegration of radium; the heaviest of the inert gasses; occurs naturally (especially in areas over granite) and is considered a hazard to health.

Rhymes with Radon

• celadon
• oxdon
• ramadan
• slobodan

How do you pronounce radon?

Pronounce radon as ˈreɪˌdɑn.

US - How to pronounce radon in American English

UK - How to pronounce radon in British English

Sentences with radon

1. Noun, singular or mass
Understanding the nature of radon and how to test for it can make your home a safer place.

2. Adjective
This testing will give you a radon concentration in units of picoCuries per liter of air (pCi/L).

3. Verb, base form
The uranium slowly decays, and radon gas is a byproduct of that decay.