Definitions

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

  • n. The cardinal number equal to 1033.
  • n. Chiefly British The cardinal number equal to 1060.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. 1033.
  • n. 1060.

from the GNU version of the Collaborative International Dictionary of English

  • n. According to the English notation, a million involved to the tenth power, or a unit with sixty ciphers annexed; according to the French and American notation, a thousand involved to the eleventh power, or a unit with thirty-three ciphers annexed. [See the Note under numeration.]

from The Century Dictionary and Cyclopedia

  • n. According to English notation, a million involved to the tenth power, being a unit with sixty ciphers annexed.
  • n. According to the modern French notation, winch is also used in the United States, a thousand involved to the eleventh power, being a unit with thirty-three ciphers annexed.

Etymologies

Latin decem, ten; see deci- + (m)illion.
(American Heritage® Dictionary of the English Language, Fourth Edition)
dec- (“ten”) + -illion (Wiktionary)

Examples

  • Three million tons of matter go into that colossal furnace every second of time, and out of that comes two and a half decillion ergs of energy.

    The Black Star Passes

  • Comma after "Actually" and a period at the end. ten billion trillion trillion carats = ten billion trillion trillion = ten decillion

    reddit.com: what's new online!

  • More importantly, I am a huge geek (bordering on dork) when it comes to numbers, and when I was a kid I would sit and memorize the names of the big exponents: decillion, nonillion, octillion (my favorite; I like the way it sounds).

    Bad Astronomy

  • This was not going the way she had planned, “I gave the computer eight decillion virtual hydrogen atoms, described in exquisite detail, and defined an environment with physical laws just like our own Universe, and …” Jaed’s mouth scrunched up at the look on Almod’s face.

    365 tomorrows » 2009 » April : A New Free Flash Fiction SciFi Story Every Day

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