Meningococcal is an adjective relating to the meningococcus bacterium, which can cause meningitis and septicemia. In medical contexts it describes organisms, vaccines, or diseases associated with Neisseria meningitidis. The term appears in clinical literature and public health discussions, used to specify meningococcal meningitis or meningococcal disease, and is pronounced with emphasis on the third syllable in typical English usage.
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