radioactive
Meanings
Plural: radioactives
Adjective
- exhibiting or caused by radioactivity
- "radioactive isotope"
- "radioactive decay"
- "radioactive fallout"
Adj
- Exhibiting radioactivity.
- Dangerous and disgusting, particularly of people or ideas.
Noun
- Any radioactive substance.
Origin / Etymology
Coined by Pierre Curie and Marie Curie in 1898 as French radio-actif, equivalent to English radio- + active.
Antonyms
Scrabble Score: 17
radioactive is a valid Scrabble (US) TWL wordradioactive is a valid Scrabble Word in Merriam-Webster MW Dictionary
radioactive is a valid Scrabble Word in International Collins CSW Dictionary
Words With Friends Score: 19
radioactive is a valid Words With Friends word