familial immunity

17 LETTERS · STARTS WITH F

familial immunity is a valid 17-letter word worth 28 points in Scrabble and 34 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

F4A1M3I1L1I1A1L1I1M3M3U1N1I1T1Y4

4 + 1 + 3 + 1 + 1 + 1 + 1 + 1 + 0 + 1 + 3 + 3 + 1 + 1 + 1 + 1 + 4 =28 PTS

DOUBLE WORD → 56TRIPLE WORD → 84

MEANING

What does familial immunity mean?