distinguishability

18 LETTERS · 7 SYLLABLES · STARTS WITH D

distinguishability is a valid 18-letter word worth 28 points in Scrabble and 31 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

D2I1S1T1I1N1G2U1I1S1H4A1B3I1L1I1T1Y4

2 + 1 + 1 + 1 + 1 + 1 + 2 + 1 + 1 + 1 + 4 + 1 + 3 + 1 + 1 + 1 + 1 + 4 =28 PTS

DOUBLE WORD → 56TRIPLE WORD → 84

MEANING

What does distinguishability mean?