antigen

एन्टिजेन; शरीरमा प्रतिरक्षा प्रतिक्रिया (विशेषगरी एन्टिबडी निर्माण) जगाउने पदार्थ

any substance (as a toxin or enzyme) that stimulates an immune response in the body (especially the production of antibodies)