Contagious :: Contagious (a.) Communicable by contact, by a virus, or by a bodily exhalation; catching; as, a contagious disease..
Contagious :: Contagious (a.) Conveying or generating disease; pestilential; poisonous; as, contagious air..
Contagious :: Contagious (a.) Spreading or communicable from one to another; exciting similar emotions or conduct in others.
Noncontagious :: Noncontagious (a.) Not contagious; not catching; not communicable by contact.