Definition of meningococcus in English:

meningococcus

Pronunciation /məˌniNGɡōˈkäkəs/ /məˌnɪŋɡoʊˈkɑkəs/

nounmeningococci

  • A bacterium involved in some forms of meningitis and cerebrospinal infection.

    Neisseria meningitidis, a nonmotile spherical Gram-negative bacterium

    ‘The illness is caused by bacteria, called meningococci, which invade the linings of the brain, causing severe inflammation that can be fatal.’
    • ‘Neisseria meningitidis, the meningococcus, is a globally distributed cause of bacterial meningitis and septicemia.’
    • ‘Overcrowding provides ideal conditions for transmission of meningococci.’
    • ‘There's no vaccine available in the UK against the commonest cause of meningitis - Group B meningococcus.’
    • ‘Because bacterial meningitis is most likely to occur in confined settings such as college dorms, some colleges ask that incoming students be vaccinated against meningococcus.’

Origin

Late 19th century from meninges+ coccus.