| NOUN | state | acquired immunity | immunity to a particular disease that is not innate but has been acquired during life |
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| Meaning | immunity to a particular disease that is not innate but has been acquired during life; immunity can be acquired by the development of antibodies after an attack of an infectious disease or by a pregnant mother passing antibodies through the placenta to a fetus or by vaccination. | |
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| Narrower | active immunity | A form of acquired immunity in which the body produces its own antibodies against disease-causing antigens |
| passive immunity | An impermanent / impermanent form of acquired immunity in which antibodies against a disease are acquired naturally (as through the placenta to an unborn child) or artificially (as by injection of antiserum) | |
| Broader | immunity, resistance | (medicine) the condition in which an organism can resist disease |
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