infrared spectroscopy

21 LETTERS · STARTS WITH I

infrared spectroscopy is a valid 21-letter word worth 35 points in Scrabble and 39 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

I1N1F4R1A1R1E1D2S1P3E1C3T1R1O1S1C3O1P3Y4

1 + 1 + 4 + 1 + 1 + 1 + 1 + 2 + 0 + 1 + 3 + 1 + 3 + 1 + 1 + 1 + 1 + 3 + 1 + 3 + 4 =35 PTS

DOUBLE WORD → 70TRIPLE WORD → 105

MEANING

What does infrared spectroscopy mean?