actinide series

NOUN
15 LETTERS · 4 SYLLABLES · STARTS WITH A

actinide series is a valid 15-letter word worth 17 points in Scrabble and 19 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
A1C3T1I1N1I1D2E1S1E1R1I1E1S1
1 + 3 + 1 + 1 + 1 + 1 + 2 + 1 + 0 + 1 + 1 + 1 + 1 + 1 + 1 =17 PTS
DOUBLE WORD → 34TRIPLE WORD → 51
MEANING

What does actinide series mean?

NOUN · 1 SENSE
1

(chemistry) a series of 15 radioactive elements with increasing atomic numbers from actinium to lawrencium.

BROADER