fluorescein

NOUN /,fluə'rɛsiɪn/
11 LETTERS · 5 SYLLABLES · STARTS WITH F

fluorescein is a valid 11-letter word worth 16 points in Scrabble and 20 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
F4L1U1O1R1E1S1C3E1I1N1
4 + 1 + 1 + 1 + 1 + 1 + 1 + 3 + 1 + 1 + 1 =16 PTS
DOUBLE WORD → 32TRIPLE WORD → 48
MEANING

What does fluorescein mean?

NOUN · 1 SENSE
1

A yellow dye that is visible even when highly diluted; used as an absorption indicator when silver nitrate solution is added to sodium chloride in order to precipitate silver chloride (turns pink when no chloride ions are left in solution and negative fluorescein ions are then absorbed).