parasitic vowel

15 LETTERS · STARTS WITH P

parasitic vowel is a valid 15-letter word worth 24 points in Scrabble and 28 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

P3A1R1A1S1I1T1I1C3V4O1W4E1L1

3 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 3 + 0 + 4 + 1 + 4 + 1 + 1 =24 PTS

DOUBLE WORD → 48TRIPLE WORD → 72

MEANING

What does parasitic vowel mean?