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Wiktionary
pneumococci

n. (plural of pneumococcus English)

WordNet
pneumococcus
  1. n. bacterium causing pneumonia in mice and humans [syn: Diplococcus pneumoniae]

  2. [also: pneumococci (pl)]

pneumococci

Usage examples of "pneumococci".

Their existence would remain as much a mystery as that of pneumococci, poodles, or any other form of life.