English dictionary
passive immunity
/'p/&/s/I/v_/I/'m/j//u/n/I/t/i/
Definitions, examples, synonyms and antonyms from WordNet 3.0.
noun
-
an 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)
Source: WordNet 3.0