intellectual exercise

21 LETTERS · STARTS WITH I

intellectual exercise is a valid 21-letter word worth 31 points in Scrabble and 38 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

I1N1T1E1L1L1E1C3T1U1A1L1E1X8E1R1C3I1S1E1

1 + 1 + 1 + 1 + 1 + 1 + 1 + 3 + 1 + 1 + 1 + 1 + 0 + 1 + 8 + 1 + 1 + 3 + 1 + 1 + 1 =31 PTS

DOUBLE WORD → 62TRIPLE WORD → 93

MEANING

What does intellectual exercise mean?