autosomal dominant disease

NOUN
26 LETTERS · STARTS WITH A

autosomal dominant disease is a valid 26-letter word worth 30 points in Scrabble and 36 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
A1U1T1O1S1O1M3A1L1D2O1M3I1N1A1N1T1D2I1S1E1A1S1E1
1 + 1 + 1 + 1 + 1 + 1 + 3 + 1 + 1 + 0 + 2 + 1 + 3 + 1 + 1 + 1 + 1 + 1 + 0 + 2 + 1 + 1 + 1 + 1 + 1 + 1 =30 PTS
DOUBLE WORD → 60TRIPLE WORD → 90
MEANING

What does autosomal dominant disease mean?