perennial treatment

19 LETTERS · STARTS WITH P

perennial treatment is a valid 19-letter word worth 22 points in Scrabble and 28 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
P3E1R1E1N1N1I1A1L1T1R1E1A1T1M3E1N1T1
3 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 0 + 1 + 1 + 1 + 1 + 1 + 3 + 1 + 1 + 1 =22 PTS
DOUBLE WORD → 44TRIPLE WORD → 66
MEANING

What does perennial treatment mean?

1