Neisseria

Neisseria /Neis·se·ria/ (ni-ser´e-ah) a genus of gram-negative bacteria (family Neisseriaceae), including N. gonorrhoe´ae, the etiologic agent of gonorrhea, N. meningi´tidis, a prominent cause of meningitis and the specific etiologic agent of meningococcal meningitis.

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Neis·se·ri·a (n-sîr-)

n.

A genus of aerobic to facultatively anaerobic bacteria containing gram-negative cocci and including the causative agents of gonorrhea and meningitis.

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Neisseria

a genus of gram-negative bacteria in the family Neisseriaceae. Commonly found as normal flora in the oral cavity and respiratory tract of many species and only rarely associated with disease except in humans where N. meningitidis is the cause of meningococcal meningitis, and N. gonorrheae is the cause of gonorrhea.