- the state of being immune from or insusceptible to a particular disease or the like.
- the condition that permits either natural or acquired resistance to disease.
- the ability of a cell to react immunologically in the presence of an antigen.
- exemption from any natural or usual liability.
- exemption from obligation, service, duty, or liability to taxation, jurisdiction, etc.: The ambassador claimed diplomatic immunity when they arrested him for reckless driving.
- exemption from criminal prosecution or legal liability or punishment on certain conditions.
- special privilege.
- Ecclesiastical.
- the exemption of ecclesiastical persons and things from secular or civil liabilities, duties, and burdens.
- a particular exemption of this kind.
- the ability of an organism to resist disease, either through the activities of specialized blood cells or antibodies produced by them in response to natural exposure or inoculation (active immunity) or by the injection of antiserum or the transfer of antibodies from a mother to her baby via the placenta or breast milk (passive immunity)
- freedom from obligation or duty, esp exemption from tax, duty, legal liability, etc
- any special privilege granting immunity
- the exemption of ecclesiastical persons or property from various civil obligations or liabilities
