[dip-luh-kok-uh s]

noun, plural dip·lo·coc·ci [dip-luh-kok-sahy, -see] /ˌdɪp ləˈkɒk saɪ, -si/, Bacteriology.

any of several spherical bacteria occurring in pairs, as Diplococcus pneumoniae.

Nearby words

  1. diploblastic,
  2. diplocardia,
  3. diplocardiac,
  4. diplock court,
  5. diplococcoid,
  6. diplocoria,
  7. diplodocus,
  8. diploe,
  9. diplogenesis,
  10. diploic

Origin of diplococcus

From New Latin, dating back to 1886; see origin at diplo-, coccus

Related formsdip·lo·coc·cal, dip·lo·coc·cic [dip-luh-kok-sik] /ˌdɪp ləˈkɒk sɪk/, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for diplococci

British Dictionary definitions for diplococci


noun plural -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 Formsdiplococcal or 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

Medicine definitions for diplococci



n. pl. dip•lo•coc•ci (-kŏksī′, -kŏkī′)

Any of various paired spherical bacteria, including those of the genus Diplococcus, some of which are pathogenic.
Related formsdip′lo•coccal (-kŏkəl) null adj.




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.