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n. pl. strep·to·coc·ci (-kŏk′sī, -kŏk′ī)
Any of various round gram-positive bacteria of the genus Streptococcus that occur in pairs or chains and can cause various infections in humans, including strep throat, erysipelas, and scarlet fever.

strep·to·coc·cal (-kŏk′əl), strep·to·coc·cic (-kŏk′sĭk, -kŏk′ĭk) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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Adj.1.streptococcic - of or relating to or caused by streptococci
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References in periodicals archive ?
Fengzhen, "CpG oligodinucleotides induce strong humoral and cellular responses to swine streptococcic septicemia vaccine in piglets in vivo" International Immunopharmacology, vol.
[9] Reviewing the bitter controversy, wide speculation, and arguments set forth by other physicians, they conducted a careful analysis and arrived at their own diagnosis: "The true nature of Washington's terminal disease was not laryngitis, for laryngitis is not fatal; the course of the illness was too short of quinsy to have been fatal; and the possibility of diphtheria was untenable because of probable immunity by previous infection, and because of advanced age--diphtheria seldom is found in a person of 67." Willius and Keys concluded, "The modern American physician in all probability would sign the death certificate in the following manner: septic sore throat, probably of streptococcic origin, associated with acute edema of the larynx."