diffraction spectrum

20 LETTERS · STARTS WITH D

diffraction spectrum is a valid 20-letter word worth 34 points in Scrabble and 40 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
D2I1F4F4R1A1C3T1I1O1N1S1P3E1C3T1R1U1M3
2 + 1 + 4 + 4 + 1 + 1 + 3 + 1 + 1 + 1 + 1 + 0 + 1 + 3 + 1 + 3 + 1 + 1 + 1 + 3 =34 PTS
DOUBLE WORD → 68TRIPLE WORD → 102
MEANING

What does diffraction spectrum mean?

1