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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.