antigen
an.ti.gen \'ant-i-j*n\ \.ant-i-'jen-ik\ \-i-k(*-)le-\ \-j*-'nis-*t-e-\ n [ISV] : a usu. protein or carbohydrate substance (as a toxin or enzyme) that whe n introduced into the body stimulates the production of an antibody - an.ti.gen.ic aj
Webster's English Dictionaryan.ti.gen \'ant-i-j*n\ \.ant-i-'jen-ik\ \-i-k(*-)le-\ \-j*-'nis-*t-e-\ n [ISV] : a usu. protein or carbohydrate substance (as a toxin or enzyme) that whe n introduced into the body stimulates the production of an antibody - an.ti.gen.ic aj