Source : Webster's Revised Unabridged Dictionary (1913)

Papillate \Pap"il*late\, v. t. & i.
   To cover with papill[ae]; to take the form of a papilla, or
   of papill[ae].

Papillate \Pap"il*late\, a.
   Same as {Papillose}.

Source : WordNet®

papillate
     adj : resembling or covered with papillae