from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Relative immunity to severe infection by a particular pathogen as a result of a chronic low-grade infection by the same pathogen.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. immunization due to having had the disease before
from the GNU version of the Collaborative International Dictionary of English
- n. The act of fortifying or guarding against objections.
from The Century Dictionary and Cyclopedia
- n. The act of fortifying or guarding beforehand; a measure taken in advance to secure immunity from peril or objection.
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.(American Heritage® Dictionary of the English Language, Fourth Edition)