semipermeability

16 LETTERS · 8 SYLLABLES · STARTS WITH S

semipermeability is a valid 16-letter word worth 27 points in Scrabble and 31 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

S1E1M3I1P3E1R1M3E1A1B3I1L1I1T1Y4

1 + 1 + 3 + 1 + 3 + 1 + 1 + 3 + 1 + 1 + 3 + 1 + 1 + 1 + 1 + 4 =27 PTS

DOUBLE WORD → 54TRIPLE WORD → 81

MEANING

What does semipermeability mean?