genetic disease

NOUN /dʒə'nɛtɪk_dɪ'ziz/
15 LETTERS · STARTS WITH G

genetic disease is a valid 15-letter word worth 18 points in Scrabble and 21 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
G2E1N1E1T1I1C3D2I1S1E1A1S1E1
2 + 1 + 1 + 1 + 1 + 1 + 3 + 0 + 2 + 1 + 1 + 1 + 1 + 1 + 1 =18 PTS
DOUBLE WORD → 36TRIPLE WORD → 54
MEANING

What does genetic disease mean?