Introduction into the body of the causative organism of a disease. Also sometimes used, incorrectly, to mean immunization with any type of vaccine.
- stress i. in clinical psychology, an approach intended to provide patients with cognitive and attitudinal skills that they can use to cope with stress.

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in·oc·u·la·tion in-.äk-yə-'lā-shən n
1) the act or process or an instance of inoculating: as
a) the introduction of a microorganism into a medium suitable for its growth
b ) (1) the introduction of a pathogen or antigen into a living organism to stimulate the production of antibodies (2) the introduction of a vaccine or serum into a living organism to confer immunity <travelers in the tropics should have typhoid \inoculations>

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the introduction of a small quantity of material, such as a vaccine, in the process of immunization: a more general name for vaccination.

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in·oc·u·la·tion (ĭ-nok″u-laґshən) the process of inoculating something.

Medical dictionary. 2011.