IPA: /ˌɪmjunədaɪəgˈnoʊsɪs/
KK: /ɪˌmjunədaɪəgˈnoʊsɪs/
A method of diagnosing diseases by testing for reactions between antigens and antibodies in blood serum.
The doctor used immunodiagnosis to determine the presence of the disease in the patient.
Immunodiagnosis → It is formed from "immunis" (from Latin, meaning exempt or free from) and "diagnosis" (from Greek "diagnōsis", meaning discernment or judgment). The word refers to the discernment or judgment related to the immune system, particularly in diagnosing diseases.
Think of being 'exempt' or 'free from' certain diseases through the 'discernment' of the immune system — that's what immunodiagnosis means.