filterable virus

16 LETTERS · STARTS WITH F

filterable virus is a valid 16-letter word worth 23 points in Scrabble and 28 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

F4I1L1T1E1R1A1B3L1E1V4I1R1U1S1

4 + 1 + 1 + 1 + 1 + 1 + 1 + 3 + 1 + 1 + 0 + 4 + 1 + 1 + 1 + 1 =23 PTS

DOUBLE WORD → 46TRIPLE WORD → 69

MEANING

What does filterable virus mean?