immunological memory
noun
im·mu·no·log·i·cal memory
| \ ˌim-yən-ᵊl-ˈäj-i-kəl-
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variants:
also immunologic memory \ -ˈäj-ik-
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Medical Definition of immunological memory
: the capacity of the body's immune system to remember an encounter with an antigen due to the activation of B cells or T cells having specificity for the antigen and to react more swiftly to the antigen by means of these activated cells in a later encounter