Definition of streptococcus
streptococciplay \-ˈkä-ˌkī, -(ˌ)kē; -ˈkäk-ˌsī, -(ˌ)sē\
: any of a genus (Streptococcus) of spherical or ovoid chiefly nonmotile and parasitic gram-positive bacteria that divide only in one plane, occur in pairs or chains, and include important pathogens of humans and domestic animals; broadly : a coccus occurring in chains
Recent Examples of streptococcus from the Web
The discovery could help the long fight to find a vaccine against Group A streptococcus bacteria, which cause strep throat, scarlet fever and rheumatic heart disease.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'streptococcus'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of streptococcus
First Known Use: 1877See Words from the same year
STREPTOCOCCUS Defined for English Language Learners
Definition of streptococcus for English Language Learners
medical : a type of bacteria that causes diseases in people and animals
Medical Definition of streptococcus
1 capitalized : a genus of spherical or ovoid chiefly nonmotile and parasitic gram-positive bacteria (family Streptococcaceae) that divide only in one plane, occur in pairs or chains, and include important pathogens of humans and domestic animals
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