Definitions

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

  • abbr. executive order

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • Equal Opportunity
  • Education Otherwise - a home education charity in the UK

from The Century Dictionary and Cyclopedia

  • n. In petrography, specifically, a prefix used before the names of rocks, chiefly volcanic, to indicate that they were erupted in geologically ancient time as distinguished from Tertiary or recent time.

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