immune

adjective

1. protected from a disease or the like, as by inoculation.
2. of or relating to the production of antibodies or lymphocytes that can react with a specific antigen: immune reaction.
3. exempt or protected: immune from punishment.
4. not responsive or susceptible: immune to new ideas.

noun

5. a person who is immune.

adjective

1. protected against a specific disease by inoculation or as the result of innate or acquired resistance
2. relating to or conferring immunityan immune body See antibody
3. (usually postpositive foll by to) unsusceptible (to) or secure (against)immune to inflation
4. exempt from obligation, penalty, etc

noun

5. an immune person or animal

adj.

mid-15c., “free; exempt,” back-formation from immunity. Cf. Latin immunis “exempt from public service, free from taxes.” Specific modern medical sense of “exempt from a disease” (typically because of inoculation) is from 1881. Immune system attested by 1917.

adj.

1. Of, relating to, or having resistance to infection by a specific pathogen.
2. Relating to the mechanism of sensitization in which the reactivity is so altered by previous contact with an antigen that the responsive tissues respond quickly upon subsequent contact.