pneumococcus noun. [nju:mǝ(ʊ)'kɒkǝs] Pl. -cocci [-'kɒk(s)ʌɪ, -'kɒk(s)i:]. L19.
[mod. Latin, from PNEUMO(NIA + COCCUS.]
Medicine. A paired bacterium (diplococcus), Streptococcus pneumoniae, associated with pneumonia, and sometimes meningitis.

■ pneumococcal,

■ pneumococcic [-'kɒk(s)ɪk],

■ pneumococcous adjectives of, pertaining to, or caused by a pneumococcus L19.

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