strep·to·coc·cus (str p t -k k s)n. pl. strep·to·coc·ci (-k ks , -kk) A round to ovoid, gram-positive, often pathogenic bacterium of the genus Streptococcus that occurs in pairs or chains, many species of which destroy red blood cells and cause various diseases in humans, including erysipelas, scarlet fever, and strep throat. |
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. |  streptococci - spherical Gram-positive bacteria occurring in pairs or chains; cause e.g. scarlet fever and tonsillitiseubacteria, eubacterium, true bacteria - a large group of bacteria having rigid cell walls; motile types have flagella genus Streptococcus - a genus of bacteria |
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