pneumococci

Variant of pneumococcus

noun pl. pneumococci

a bacterium (Streptococcus pneumoniae) that is a cause of certain diseases, as pneumonia

Origin: ModL: see pneumo- & coccus

Related Forms:

Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.
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