frequency spectrum

18 LETTERS · STARTS WITH F

frequency spectrum is a valid 18-letter word worth 40 points in Scrabble and 46 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

F4R1E1Q10U1E1N1C3Y4S1P3E1C3T1R1U1M3

4 + 1 + 1 + 10 + 1 + 1 + 1 + 3 + 4 + 0 + 1 + 3 + 1 + 3 + 1 + 1 + 1 + 3 =40 PTS

DOUBLE WORD → 80TRIPLE WORD → 120

MEANING

What does frequency spectrum mean?