pneu·mo·coc·cus

[noo-muh-kok-uhs, nyoo‐]
noun, plural pneu·mo·coc·ci [kok-sahy, ‐see] .
a bacterium, Diplococcus pneumoniae, causing lobar pneumonia and associated with cerain other diseases, as pericarditis and meningitis.

Origin:
1885–90; < Neo-Latin; see pneumo-, -coccus

pneu·mo·coc·cal [noo-muh-kok-uhl, nyoo‐] , pneu·mo·coc·cic [noo-muh-kok-sik, nyoo‐] , pneu·mo·coc·cous [noo-muh-kok-uhs, nyoo‐] , adjective
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Collins
World English Dictionary
pneumococcus (ˌnjuːməʊˈkɒkəs) [Click for IPA pronunciation guide]
 
n , pl -cocci
a spherical bacterium that occurs in the respiratory tract, esp the Gram-positive Diplococcus pneumoniae, which causes pneumonia
 
pneumo'coccal
 
adj

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

pneumococcus pneu·mo·coc·cus (n&oomacr;'mə-kŏk'əs, ny&oomacr;'-)
n. pl. pneu·mo·coc·ci (-kŏk'sī', -kŏk'ī')
A nonmotile, gram-positive bacterium (Streptococcus pneumoniae) that is the most common cause of bacterial pneumonia and is associated with meningitis and other infectious diseases.


pneu'mo·coc'cal (-kŏk'əl) adj.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
No currently available vaccine protects against all types of pneumococcus.
Bacteria on the rise may be filling the ecological void left by the decline in the vaccine's seven pneumococcus strains.
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