intrusive rock

14 LETTERS · STARTS WITH I

intrusive rock is a valid 14-letter word worth 22 points in Scrabble and 26 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

I1N1T1R1U1S1I1V4E1R1O1C3K5

1 + 1 + 1 + 1 + 1 + 1 + 1 + 4 + 1 + 0 + 1 + 1 + 3 + 5 =22 PTS

DOUBLE WORD → 44TRIPLE WORD → 66

MEANING

What does intrusive rock mean?