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coccus |
Also found in: Dictionary/thesaurus, Medical, Wikipedia, Hutchinson | 0.03 sec. |
coccusSpherical bacterium. Many species have characteristic arrangements that are useful in identification. Pairs of cocci are called diplococci; rows or chains, streptococci (see streptococcus); grapelike clusters, staphylococci (see staphylococcus); packets of eight or more cells, sarcinae; and groups of four cells in a square arrangement, tetrads. These characteristic groupings occur as a result of variations in the reproduction process. coccus [′käk·əs] (microbiology) A form of eubacteria which are more or less spherical in shape. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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1957 Cutaneous disease in butchers; later believed to be a strepto- coccal or staphylococcal infection. Personal, family, and household factors and meningococcal carriage Exposed(a) Nonexposed Meningo- Meningo- coccal Non coccal Non Variable carrier carrier carrier carrier Age >14 40 201 13 372 Male sex(c) 31 267 22 304 Low socioeconomic conditions Shared bedroom(c) 13 106 40 466 Household ratio >0. |
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