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

  • n. The ordinal number that matches the number octillion in a series.
  • n. One of an octillion equal parts.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. The ordinal form of the number octillion.
  • n. The person or thing in the octillionth position.
  • n. One of a octillion equal parts of a whole.

from The Century Dictionary and Cyclopedia

  • The ordinal numeral adjective corresponding to octillion; last in an ordered set of an octillion elements.
  • Being one of an octillion all equal: as an octillionth part.
  • n. The quotient of unity divided by an octillion.


octillion + -th (Wiktionary)



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