vaccine
/ˈvæksi:n; ?@ vækˈsi:n; væk`sin/ n[U, C]
substance that is injected into the bloodstream and protects the body by making it have a mild form of the disease 疫苗; 菌苗
develop a smallpox, polio, rabies, etc vaccine 培养天花、 小儿麻痹症、 狂犬病等的疫苗. Cf 参看 serum2.