- the immunity or resistance to a particular infection that occurs in a group of people or animals when a very high percentage of individuals have been vaccinated or previously exposed to the infection.
More Definitions
- MINICOURSE (noun) Definition, Meaning & Examples
- QUALITIES (noun) Definition, Meaning & Examples
- ICEBERG LETTUCE (noun) Definition, Meaning & Examples
- EGLANTINE (noun) Definition, Meaning & Examples
- DIS ALITER VISUM (noun) Definition, Meaning & Examples
- BENZENESULFONIC ACID (noun) Definition, Meaning & Examples