radioactivity

NOUN /,reɪdioʊæk'tɪvɪti/
13 LETTERS · 7 SYLLABLES · STARTS WITH R

radioactivity is a valid 13-letter word worth 22 points in Scrabble and 23 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
R1A1D2I1O1A1C3T1I1V4I1T1Y4
1 + 1 + 2 + 1 + 1 + 1 + 3 + 1 + 1 + 4 + 1 + 1 + 4 =22 PTS
DOUBLE WORD → 44TRIPLE WORD → 66
MEANING

What does radioactivity mean?

NOUN · 1 SENSE
1

The spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay.

SYNONYMS
BROADER