active immunity


noun Immunology.

immunity in an organism resulting from its own production of antibody or lymphocytes.
Compare passive immunity.

Origin of active immunity

First recorded in 1910–15

Medical definitions for active immunity

active immunity

n.

Immunity resulting from the development of antibodies in response to the presence of an antigen, as from vaccination or exposure to an infectious disease.

Scientific definitions for active immunity

active immunity

See under acquired immunity.