The Collaborative International Dictionary of English v.0.48:

Papilloma \Pap`il*lo"ma\, n.; pl. Papillomata. [NL. See
   Papilla, and -Oma.] (Med.)
   A tumor formed by hypertrophy of the papill[ae] of the skin
   or mucous membrane, as a corn or a wart. --Quain.
   [1913 Webster]