noun · 2 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.
Received-Pronunciation:/ˌɔː.təʊ.ɪˈmjuː.nɪ.ti/
General-American:/ˌɔːtoʊɪˈmjuːnɪti/
cot-caught-merger:/ˌɑtoʊɪˈmjuːnɪti/
cot-caught-merger:[ˌɑɾoʊɪˈmjunɪɾi]
US:Recorded audio is listed in the source snapshot.
1
noun
Meaning 1
The condition where one's immune system attacks one's own tissues, i.e., an autoimmune disorder.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Topics: immunology, medicine, pathology, sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
noun
Meaning 2
production of antibodies against the tissues of your own body; produces autoimmune disease or hypersensitivity reactions
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
Broader terms: pathology
History
Etymology
Etymology tree Proto-Indo-European *h2ewder.? Proto-Indo-European *sóder.? Proto-Indo-European *h2ewder. Ancient Greek αὖ (aû) Ancient Greek τόν (tón)? Ancient Greek αὐτός (autós) Ancient Greek αὐτο- (auto-)lbor. English auto- English immunity English autoimmunity From auto- + immunity.
Across languages
Translations
17 source translations are retained for this English entry.
Catalan:
autoimmunitat
— condition where the immune system attacks the body's own tissues
Chinese Mandarin:
自身免疫疾病
(zìshēn miǎnyì jíbìng)
— condition where the immune system attacks the body's own tissues
Czech:
autoimunita
— condition where the immune system attacks the body's own tissues
Dutch:
auto-immuniteit
— condition where the immune system attacks the body's own tissues
Faroese:
sjálvórin
— condition where the immune system attacks the body's own tissues
Finnish:
autoimmuniteetti
— condition where the immune system attacks the body's own tissues
Galician:
autoinmunidade
— condition where the immune system attacks the body's own tissues
German:
Autoimmunität
— condition where the immune system attacks the body's own tissues
Hungarian:
autoimmunitás
— condition where the immune system attacks the body's own tissues
Italian:
autoimmunità
— condition where the immune system attacks the body's own tissues
Japanese:
自己免疫
(jikomen'eki)
— condition where the immune system attacks the body's own tissues
Korean:
자가 면역
(jaga myeonyeok)
— condition where the immune system attacks the body's own tissues
Portuguese:
autoimunidade
— condition where the immune system attacks the body's own tissues
Romanian:
autoimunitate
— condition where the immune system attacks the body's own tissues
Russian:
аутоиммунность
(autoimmunnostʹ)
— condition where the immune system attacks the body's own tissues
Slovak:
autoimunita
— condition where the immune system attacks the body's own tissues
Spanish:
autoinmunidad
— condition where the immune system attacks the body's own tissues
