spectroscopy

NOUN /spɛk'trɑskəpi/
12 LETTERS · 4 SYLLABLES · STARTS WITH S

spectroscopy is a valid 12-letter word worth 23 points in Scrabble and 26 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
S1P3E1C3T1R1O1S1C3O1P3Y4
1 + 3 + 1 + 3 + 1 + 1 + 1 + 1 + 3 + 1 + 3 + 4 =23 PTS
DOUBLE WORD → 46TRIPLE WORD → 69
MEANING

What does spectroscopy mean?