radon
Noun
-
is a type of:
- chemical element, element - any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter
- argonon, inert gas, noble gas - any of the chemically inert gaseous elements of the helium group in the periodic table
same as: atomic number 86, rn
Found on Word Lists
Other Searches
- Rhyme: Dillfrog, RhymeZone
- Definition: Wiktionary, Dictionary.com, Wikipedia, Merriam-Webster, WordNet, Power Thesaurus
- Imagery: Google, Flickr, Bing