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onto-

 - 3 dictionary results

onto-

a combining form meaning “being,” used in the formation of compound words: ontogeny.
Also, especially before a vowel, ont-.


Origin:
< NL < Gk ont- (s. of ón, neut. prp. of eînai to be) + -o- -o-
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To onto-
onto- or ont-  
pref.  
  1. Existence; being: ontology.

  2. Organism: ontogeny.


[Late Greek, from Greek ōn, ont-, present participle of einai, to be; see es- in Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

onto- or ont-
pref.
Organism; being: ontogeny.

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