[ im-yuh-nahyz, ih-myoo-nahyz ]
/ ˈɪm yəˌnaɪz, ɪˈmyu naɪz /

verb (used with object), im·mu·nized, im·mu·niz·ing.

to make immune.
to render harmless or ineffective; neutralize.
Law. to grant (a witness) immunity.
Also especially British, im·mu·nise.

Origin of immunize

First recorded in 1890–95; immune + -ize

OTHER WORDS FROM immunize Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for immunize

British Dictionary definitions for immunize



/ (ˈɪmjʊˌnaɪz) /


to make immune, esp by inoculation

Derived forms of immunize

immunization or immunisation, nounimmunizer or immuniser, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for immunize

[ ĭmyə-nīz′ ]


To render immune.
To produce immunity in, as by inoculation.

Other words from immunize

im′mu•ni•zation (-nĭ-zāshən) n.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for immunize

[ ĭm′yə-nĭ-zāshən ]

The process of inducing immunity to an infectious organism or agent in an individual or animal through vaccination.
A vaccination that induces immunity. A recommended schedule of immunizations for infants and young children includes vaccines against diphtheria, polio, tetanus, measles, mumps, and rubella.

Other words from immunization

immunize verb
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.