(US, uncountable) The process by which an individual is safely exposed in a controlled manner to a material that is designed to prime their immune system against that material.

(epidemiology) A person who is not susceptible to infection by a particular disease

(rare, transitive) To make immune.

(usually with "from") Exempt; not subject to. / (medicine, usually with "to") Protected by inoculation, or due to innate resistance to pathogens. / (by extension) Not vulnerable.

(medicine) Protective resistance against disease. / (law) An exemption from specified duties, such as payments or services. / (law) An exemption from prosecution. / (religion) An exemption from penance.

present participle of immune

simple past tense and past participle of immune

Abbreviation of immunity.

All the changes in a tissue that result from the action of a foreign substance introduced into an organism

(epidemiology) The indirect protection against the spread of a contagious disease in a given population caused by the immunity of a significant proportion of the population to that particular disease; the immunity may have been obtained through having survived the infection or through vaccination.