[noo-muh-kok-uh s, nyoo‐]
noun, plural pneu·mo·coc·ci [noo-muh-kok-sahy, ‐see, nyoo‐] /ˌnu məˈkɒk saɪ, ‐si, ˌnyu‐/.
a bacterium, Diplococcus pneumoniae, causing lobar pneumonia and associated with certain other diseases, as pericarditis and meningitis.
Origin of pneumococcus
Related formspneu·mo·coc·cal [noo-muh-kok-uh l, nyoo‐] /ˌnu məˈkɒk əl, ˌnyu‐/, pneu·mo·coc·cic [noo-muh-kok-sik, nyoo‐] /ˌnu məˈkɒk sɪk, ˌnyu‐/, pneu·mo·coc·cous [noo-muh-kok-uh s, nyoo‐] /ˌnu məˈkɒk əs, ˌnyu‐/, adjective
From New Latin,
dating back to 1885–90;
see origin at pneumo-
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for pneumococcus
Historical Examples of pneumococcus
The bacteria were chiefly staphylococci, rarely the pneumococcus or the micrococcus catarrhalis.
Cultivations from the heart blood gave a pure growth of a typical (capsulated) pneumococcus.
Another interesting feature about the pneumococcus is its vitality outside of the body.
Widely present as the pneumococcus is, we know well that it is powerless for harm except in unhealthful surroundings.
Recognition of the pneumococcus depends upon its morphology, the fact that it is Gram-staining, and the presence of a capsule.
British Dictionary definitions for pneumococcus
noun plural -cocci (-ˈkɒkaɪ)
Derived Formspneumococcal, adjective
a spherical bacterium that occurs in the respiratory tract, esp the Gram-positive Diplococcus pneumoniae, which causes pneumonia
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
n. pl. pneu•mo•coc•ci (-kŏk′sī′, -kŏk′ī′)
Related formspneu′mo•coc′cal (-kŏk′əl) adj.
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.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.