any of several spherical or oval bacteria of the genus Streptococcus, occurring in pairs or chains, certain species of which are pathogenic for humans, causing scarlet fever, tonsillitis, etc.
- strep·to·coc·cal [strep-tuh-kok-uhl], /ˌstrɛp təˈkɒk əl/, strep·to·coc·cic [strep-tuh-kok-sik], /ˌstrɛp təˈkɒk sɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use streptococcus in a sentence
Turns out, there are specific strains of bacteria — streptococcus mutans, in particular — that are more common in mouths with cavities.
By far the most frequent exciting causes of acute otitis media are the pneumococcus and the streptococcus.A Manual of Clinical Diagnosis | James Campbell Todd
The least trace of Gomenol prevents the growth in vitro of the streptococcus, the tuberculous bacillus and the gonococcus.
Erysipelas is a much-dreaded disease which is the result of infection with the blood-poisoning germ—streptococcus.The Mother and Her Child | William S. Sadler
Cultivations from the liver gave a pure growth of what appeared to be a typical (non-capsulated) streptococcus pyogenes longus.The Elements of Bacteriological Technique | John William Henry Eyre
If the resulting growth resembles that of the streptococcus, make subcultivations upon nutrient agar.The Elements of Bacteriological Technique | John William Henry Eyre
British Dictionary definitions for streptococcus
any Gram-positive spherical bacterium of the genus Streptococcus, typically occurring in chains and including many pathogenic species, such as S. pyogenes, which causes scarlet fever, sore throat, etc: family Lactobacillaceae: Often shortened to: strep
- streptococcal (ˌstrɛptəʊˈkɒkəl) or rare streptococcic (ˌstrɛptəʊˈkɒkɪk, US -ˈkɒksɪk), adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for streptococcus
Any of various bacteria of the genus Streptococcus that are gram-positive cocci and are normally found on the skin and mucous membranes and in the digestive tract of mammals. One type of streptococcus, Group A, is a common pathogen in humans and causes various infections, including strep throat, scarlet fever, pneumonia, and some types of impetigo.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Cultural definitions for streptococcus
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.