renal disorder

NOUN
14 LETTERS · STARTS WITH R

renal disorder is a valid 14-letter word worth 15 points in Scrabble and 17 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
R1E1N1A1L1D2I1S1O1R1D2E1R1
1 + 1 + 1 + 1 + 1 + 0 + 2 + 1 + 1 + 1 + 1 + 2 + 1 + 1 =15 PTS
DOUBLE WORD → 30TRIPLE WORD → 45
MEANING

What does renal disorder mean?