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immunodeficiency

American  
[im-yuh-noh-di-fish-uhn-see, ih-myoo-] / ˌɪm yə noʊ dɪˈfɪʃ ən si, ɪˌmyu- /

noun

plural

immunodeficiencies

  1. impairment of the immune response, predisposing to infection and certain malignancies.

immunodeficiency British  
/ ˌimjʊnəʊdɪˈfɪʃənsɪ /

noun

  1. a deficiency in or breakdown of a person's immune system

"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
immunodeficiency Scientific  
/ ĭm′yə-nō-dĭ-fĭsh′ən-sē,ĭ-myo̅o̅′- /

  1. The inability to produce a normal immune response, caused by an acquired or inherited disease.

Other Word Forms

  • immunodeficient adjective

Etymology

Origin of immunodeficiency

First recorded in 1970–75; immuno- + deficiency

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.