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a combining form meaning “double,” “in pairs,” used in the formation of compound words:
Also, especially before a vowel, dipl-.
Origin of diplo-
< Greek, combining form of diplóos twofold Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for dipl


combining form
double: diplococcus
Word Origin
from Greek, from diploos, from di-1 + -ploos -fold
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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dipl in Medicine

diplo- or dipl-

  1. Double: diplococcus.

  2. Having double the basic number of chromosomes; diploid: diplont.

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


  1. diploma
  2. diplomat
  3. diplomatic
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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