Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
The immunity which results from the production of antibodies by the immune system in response to the presence of an antigen.
Share your knowledge with the community
Browse our collection of 300,000+ community-written definitions