infusorial earth

16 LETTERS · STARTS WITH I

infusorial earth is a valid 16-letter word worth 21 points in Scrabble and 23 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

I1N1F4U1S1O1R1I1A1L1E1A1R1T1H4

1 + 1 + 4 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 0 + 1 + 1 + 1 + 1 + 4 =21 PTS

DOUBLE WORD → 42TRIPLE WORD → 63

MEANING

What does infusorial earth mean?