Definitions for "Anamnestic response"
Immunologic memory; the ability of the immune system to "remember" a foreign substance to which it has been exposed, and to produce an even more effective response to it upon subsequent reexposure.
The heightened immunologic reaction elicited by a second or subsequent exposure to a particular antigen such as a pathogenic microorganism (e.g., bacterium, fungus).
renewed rapid production of an antibody on the second (or subsequent) encounter with the same antigen