resonance indicator

19 LETTERS · STARTS WITH R

resonance indicator is a valid 19-letter word worth 23 points in Scrabble and 28 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

R1E1S1O1N1A1N1C3E1I1N1D2I1C3A1T1O1R1

1 + 1 + 1 + 1 + 1 + 1 + 1 + 3 + 1 + 0 + 1 + 1 + 2 + 1 + 3 + 1 + 1 + 1 + 1 =23 PTS

DOUBLE WORD → 46TRIPLE WORD → 69

MEANING

What does resonance indicator mean?