hypabyssal rock

15 LETTERS · STARTS WITH H

hypabyssal rock is a valid 15-letter word worth 33 points in Scrabble and 34 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

H4Y4P3A1B3Y4S1S1A1L1R1O1C3K5

4 + 4 + 3 + 1 + 3 + 4 + 1 + 1 + 1 + 1 + 0 + 1 + 1 + 3 + 5 =33 PTS

DOUBLE WORD → 66TRIPLE WORD → 99

MEANING

What does hypabyssal rock mean?