anxiety disorder

NOUN
16 LETTERS · STARTS WITH A

anxiety disorder is a valid 16-letter word worth 27 points in Scrabble and 27 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
A1N1X8I1E1T1Y4D2I1S1O1R1D2E1R1
1 + 1 + 8 + 1 + 1 + 1 + 4 + 0 + 2 + 1 + 1 + 1 + 1 + 2 + 1 + 1 =27 PTS
DOUBLE WORD → 54TRIPLE WORD → 81
MEANING

What does anxiety disorder mean?