Definitions

1. verb

to give or provide (someone or something) with immunity, especially to a particular disease

“The new vaccine will immunize children against measles.”

2. verb

to make (someone or something) resistant to a particular disease or infection

“The antibiotics will immunize her against the bacterial infection.”

3. noun

the act of giving or providing someone or something with immunity, especially to a particular disease

“The immunization of the entire village was a remarkable achievement.”

4. noun

a substance or agent that gives immunity, especially to a particular disease

“The immunizer is a special serum used to immunize people against the flu.”