normal series

13 LETTERS · STARTS WITH N

normal series is a valid 13-letter word worth 14 points in Scrabble and 17 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

N1O1R1M3A1L1S1E1R1I1E1S1

1 + 1 + 1 + 3 + 1 + 1 + 0 + 1 + 1 + 1 + 1 + 1 + 1 =14 PTS

DOUBLE WORD → 28TRIPLE WORD → 42

MEANING

What does normal series mean?