WordNet (r) 3.0 (2006):

listeria meningitis
    n 1: an infectious disease of animals and humans (especially
         newborn or immunosuppressed persons) caused by the
         bacterium Listeria monocytogenes; in sheep and cattle the
         infection frequently involves the central nervous system
         and causes various neurological symptoms [syn:
         listeriosis, listeria meningitis]