pneumococcus


pneu·mo·coc·cus

noun \ˌnü-mə-ˈkä-kəs, ˌnyü-\
plural pneu·mo·coc·ci\-ˈkäk-ˌsī, -ˌsē; -ˈkä-ˌkī, -ˌkē\

Definition of PNEUMOCOCCUS

:  a bacterium (Streptococcus pneumoniae) that causes an acute pneumonia involving one or more lobes of the lung
pneu·mo·coc·cal \-ˈkä-kəl\ adjective

Origin of PNEUMOCOCCUS

New Latin
First Known Use: 1890

pneu·mo·coc·cus

noun \ˌn(y)ü-mə-ˈkäk-əs\   (Medical Dictionary)
plural pneu·mo·coc·ci \-ˈkäk-ˌ(s)ī\

Medical Definition of PNEUMOCOCCUS

: a bacterium of the genus Streptococcus (S. pneumoniae) that causes an acute pneumonia involving one or more lobes of the lung

pneumococcus

noun    (Concise Encyclopedia)

Spheroidal bacterium (Streptococcus pneumoniae) that causes human diseases including pneumonia, sinusitis, ear infection, and meningitis. Usually occurring in the upper respiratory tract, this gram-positive (see gram stain) coccus is often found in a chain configuration and surrounded by a polysaccharide capsule. Pneumococci are separated into types depending on the specific capsular polysaccharide formed. Their disease-causing ability resides in the capsule, which delays or prevents their destruction by cells in the bloodstream that normally engulf foreign material.

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