radon
6 points
English
5 letters
Uncommon
Commonness #40,474
Valid in: US and UK dictionaries
Definitions
noun
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
Definition: WordNet 3.1, Princeton University.
Pronunciation
/ɹˈeɪdˌɑːn/ · 2 syllables · CMUdict (BSD-3-Clause)
Word forms
plural radons
Forms from WordNet 3.1 morphology — every form attested in the dictionary.
Rhymes
moronhoganphenomenonpentagonamazonmarathonbabylonliaisonsiobhantucsonneutronnylonparmesanavalonprotonphoton
More rhymes → · rhymes from CMUdict (BSD-3-Clause)