1. polyoma-a virus that can initiate various kinds of tumors in mice.
2. lingua-a mobile mass of muscular tissue covered with mucous membrane and located in the oral cavity.
3. livedo-skin disorder characterized by patchy bluish discolorations on the skin.
4.bigeneric-resulting from a cross between species of different genera.
5.scabies-a contagious skin infection caused by the itch mite.