inoculation

1. The introduction of an antigenic substance or vaccine into the body to produce immunity to a specific disease. (countable, uncountable)
2. The introduction of a microorganism into a culture medium. (countable, uncountable)
3. The insertion of the buds of one plant into another; grafting. (countable, uncountable)
4. An inoculum; that which is inoculated. (countable, uncountable)
5. Synonym of prebunking. (countable, uncountable)
6. Any technique to reduce harm by exposing oneself to a milder form of that harm. (countable, uncountable)

Plural inoculations