prosubstitution

15 LETTERS · 5 SYLLABLES · STARTS WITH P

prosubstitution is a valid 15-letter word worth 19 points in Scrabble and 24 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

P3R1O1S1U1B3S1T1I1T1U1T1I1O1N1

3 + 1 + 1 + 1 + 1 + 3 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 =19 PTS

DOUBLE WORD → 38TRIPLE WORD → 57

MEANING

What does prosubstitution mean?