免疫学 miǎnyìxué immunology Origin Definitions Defs Strokes Stroke Words Sentences Sents 免疫 miǎnyì adjectivenoun immunity Biological resistance to a specific disease, pathogen, or toxin; to be immune学 學 xué nounaffix branch of learning (bound form) a subject or branch of study; often used as a suffix for -logy, -ics, or -science