WordReference Random House Unabridged Dictionary of American English © 2026
pleio-, 
  1. var. of pleo-. 

Collins Concise English Dictionary © HarperCollins Publishers::
pleio- combining form
  1. a variant of plio-
WordReference Random House Unabridged Dictionary of American English © 2026
plio-, 
  1. var. of pleo-. 

Collins Concise English Dictionary © HarperCollins Publishers::
plio-, pleo-, pleio- combining form
  1. greater in size, extent, degree, etc; more: Pliocene
Etymology: from Greek pleiōn more, from polus much, many
'pleio-' also found in these entries (note: many are not synonyms or translations):
plio- - pleiotaxy - pleiotropy - pleo-

Forum discussions with the word(s) "pleio-" in the title:


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