interior mapping

16 LETTERS · STARTS WITH I

interior mapping is a valid 16-letter word worth 22 points in Scrabble and 28 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

I1N1T1E1R1I1O1R1M3A1P3P3I1N1G2

1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 0 + 3 + 1 + 3 + 3 + 1 + 1 + 2 =22 PTS

DOUBLE WORD → 44TRIPLE WORD → 66

MEANING

What does interior mapping mean?