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[dip-luh-kok-uh s] /ˌdɪp ləˈkɒk əs/
noun, plural diplococci
[dip-luh-kok-sahy, -see] /ˌdɪp ləˈkɒk saɪ, -si/ (Show IPA).
any of several spherical bacteria occurring in pairs, as Diplococcus pneumoniae.
Origin of diplococcus
1886; < New Latin; see diplo-, coccus
Related forms
diplococcal, diplococcic
[dip-luh-kok-sik] /ˌdɪp ləˈkɒk sɪk/ (Show IPA),
adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for diplococcus
Historical Examples
  • The presence of such a diplococcus in meningeal exudates is, however, sufficient for its identification.

    A Manual of Clinical Diagnosis James Campbell Todd
  • The diplococcus merely produces acidification and coagulation of the milk.

    The Bacillus of Long Life Loudon Douglas
  • For instance, not a few healthy noses and throats contain the bacillus of diphtheria and the diplococcus of pneumonia.

    Preventable Diseases Woods Hutchinson
  • The joint lesions which accompany acute rheumatism or “rheumatic fever” are believed to be due to a diplococcus.

    Manual of Surgery Alexis Thomson and Alexander Miles
  • If growth of diplococcus pneumoniæ occurs, again heat culture in water-bath at 60° C. for one hour and again test for sterility.

  • These are exceptional durations in the male for virulence, though not for continuance of the diplococcus.

British Dictionary definitions for diplococcus


noun (pl) -cocci (-ˈkɒksaɪ)
any of various spherical Gram-positive bacteria that occur in pairs, esp any of the genus Diplococcus, such as D. pneumoniae, which causes pneumonia: family Lactobacillaceae
Derived Forms
diplococcal, diplococcic (ˌdɪpləʊˈkɒksɪk; -ˈkɒkɪk) 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
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diplococcus in Medicine

diplococcus dip·lo·coc·cus (dĭp'lō-kŏk'əs)
n. pl. dip·lo·coc·ci (-kŏk'sī', -kŏk'ī')
Any of various paired spherical bacteria, including those of the genus Diplococcus, some of which are pathogenic.

dip'lo·coc'cal (-kŏk'əl) or dip'lo·coc'cic (-kŏk'sĭk, -kŏk'ĭk) adj.

Diplococcus Dip·lo·coc·cus (dĭp'lō-kŏk'əs)
A genus of gram-positive anaerobic encapsulated fermenting bacteria having a somewhat elongated spherical shape.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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