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active immunity

American  

noun

Immunology.

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

active immunity Scientific  

  1. See under acquired immunity

Etymology

Origin of active immunity

First recorded in 1910–15

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Example Sentences

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Active immunity has thus been shown to be associated with the presence of certain anti-substances in the serum.

From Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 2 "Baconthorpe" to "Bankruptcy" by Various

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.