intertropical convergence zone

30 LETTERS · STARTS WITH I

intertropical convergence zone is a valid 30-letter word worth 49 points in Scrabble and 60 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
I1N1T1E1R1T1R1O1P3I1C3A1L1C3O1N1V4E1R1G2E1N1C3E1Z10O1N1E1
1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 3 + 1 + 3 + 1 + 1 + 0 + 3 + 1 + 1 + 4 + 1 + 1 + 2 + 1 + 1 + 3 + 1 + 0 + 10 + 1 + 1 + 1 =49 PTS
DOUBLE WORD → 98TRIPLE WORD → 147
MEANING

What does intertropical convergence zone mean?

1