active immunity

noun

Definition of active immunity 

: usually long-lasting immunity that is acquired through production of antibodies within the organism in response to the presence of antigens — compare passive immunity

First Known Use of active immunity

1895, in the meaning defined above

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The first known use of active immunity was in 1895

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active immunity

noun

Medical Definition of active immunity 

: usually long-lasting immunity that is acquired through production of antibodies within the organism in response to the presence of antigens — compare acquired immunity, innate immunity, passive immunity

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