The Collaborative International Dictionary of English v.0.48:

Leprose \Lep"rose`\ (l[e^]p"r[=o]s`), a. [See Leprous.] (Nat.
   Hist.)
   Covered with thin, scurfy scales.
   [1913 Webster]

WordNet (r) 3.0 (2006):

leprose
    adj 1: rough to the touch; covered with scales or scurf [syn:
           lepidote, leprose, scabrous, scaly, scurfy]