tredecillion

noun, often attributive
tre·​de·​cil·​lion | \ ˌtrē-di-ˈsil-yən How to pronounce tredecillion (audio) \

Definition of tredecillion

US : a number equal to 1 followed by 42 zeros — see Table of Numbers also, British : a number equal to 1 followed by 78 zeros — see Table of Numbers

First Known Use of tredecillion

1850, in the meaning defined above

History and Etymology for tredecillion

Latin tredecim thirteen (from tres three + decem ten) + English -illion (as in million) — more at three, ten

Keep scrolling for more

Learn More about tredecillion

Time Traveler for tredecillion

Time Traveler

The first known use of tredecillion was in 1850

See more words from the same year

Statistics for tredecillion

Cite this Entry

“Tredecillion.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/tredecillion. Accessed 29 January 2020.

More from Merriam-Webster on tredecillion

Rhyming Dictionary: Words that rhyme with tredecillion

Comments on tredecillion

What made you want to look up tredecillion? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to assert without proof or before proving

Get Word of the Day daily email!

Test Your Vocabulary

January 2020 Words of the Day Quiz

  • image1642096650
  • Which is a synonym of bonhomie?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Syn City

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!