(n) a virus disease of the skin marked by round white swellings; transmitted from person to person (most often in children or in adults with impaired immune function)
The Collaborative International Dictionary of English (GCIDE) v.0.53 Collaborative International Dictionary (GCIDE)
‖n. [ NL. See Mollusk. ] (Med.) A cutaneous disease characterized by numerous tumors, of various forms, filled with a thick matter; -- so called from the resemblance of the tumors to some molluscous animals. Dunglison. [ 1913 Webster ]