pre·mu·ni·tion  (prē'myŏŏ-nĭsh'ən)  n. Relative immunity to severe infection by a particular pathogen as a result of a chronic low-grade infection by the same pathogen. [French prémunition, from Latin praemūnītiō, praemūnītiōn-, fortification beforehand, from praemūnītus, past participle of praemūnīre, to fortify in advance : prae-, pre- + mūnīre, to fortify; see munition.] pre·mune' (prē-myōōn') adj. |