RADIOACTIVITIES

Scrabble 21 Words With Friends 23

Scrabble letter values: R₁A₁D₂I₁O₁A₁C₃T₁I₁V₄I₁T₁I₁E₁S₁ = 21

Definition

RADIOACTIVITIES is the plural of RADIOACTIVITY.

noun RADIOACTIVITY: the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay.

Synonyms of RADIOACTIVITY: radiation