Usage Note
Radiactivo is the standard spelling in Spanish (one word, without a hyphen), though radioactivo also appears in informal usage and is listed as a variant by the RAE. The noun form is la radiactividad. The adjective agrees in gender: material radiactivo, sustancia radiactiva.
Examples
"El residuo radiactivo se almacena de forma segura."
Natural Translation
The radioactive waste is stored safely.
Related Words
Explore Spanish by topic