Definitions for "Subunit vaccine"
a vaccine containing only specific antigenic proteins of the infectious agent.
a vaccine based on specific antigens of the infectious agent; they stimulate an immune response in the body of the host and so confer resistance to the disease
a vaccine that uses one or more parts of a disease-causing organism, rather than the whole, to stimulate an immune response. The Hepatitis B vaccine is an example of a subunit vaccine.