(medicine) a person (or animal) who has some pathogen to which he is immune but who can pass it on to others
a large warship that carries planes and has a long flat deck for takeoffs and landings
a self-propelled wheeled vehicle designed specifically to carry something
an inactive substance that is a vehicle for a radioactive tracer of the same substance and that assists in its recovery after some chemical reaction
a person or firm in the business of transporting people or goods or messages
(usually followed by `to') not affected by a given influence
relating to or conferring immunity (to disease or infection)
a person who is immune to a particular infection
