spectroscopic analysis

NOUN
22 LETTERS · 7 SYLLABLES · STARTS WITH S

spectroscopic analysis is a valid 22-letter word worth 34 points in Scrabble and 40 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
S1P3E1C3T1R1O1S1C3O1P3I1C3A1N1A1L1Y4S1I1S1
1 + 3 + 1 + 3 + 1 + 1 + 1 + 1 + 3 + 1 + 3 + 1 + 3 + 0 + 1 + 1 + 1 + 1 + 4 + 1 + 1 + 1 =34 PTS
DOUBLE WORD → 68TRIPLE WORD → 102
MEANING

What does spectroscopic analysis mean?