from The American Heritage® Dictionary of the English Language, 4th Edition

  • All: omnidirectional.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • a combining form meaning "all", used in the formation of compound words.

from the GNU version of the Collaborative International Dictionary of English

  • A combining form denoting all, every, everywhere.


Latin, from omnis, all; see op- in Indo-European roots.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin omnis "all" (Wiktionary)


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