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pleo-

  1. a combining form meaning “more,” used in the formation of compound words: pleomorphism.
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Also pleio-, plio-.

Origin of pleo-

combining form representing Greek pleíōn more (comparative of polýs; see poly-); see -o-
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for pleo-

pleo-

combining form
  1. a variant of plio- pleochroism; pleomorphism
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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

Word Origin and History for pleo-

see pleio-.

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Online Etymology Dictionary, © 2010 Douglas Harper

pleo- in Medicine

pleo-

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