\
Definition of undecillion
US : a number equal to 1 followed by 36 zeros — see Table of Numbers also, British : a number equal to 1 followed by 66 zeros — see Table of Numbers
Keep scrolling for more
Comments on undecillion
What made you want to look up undecillion? Please tell us where you read or heard it (including the quote, if possible).
Test Your Vocabulary
Autumn Words of the Day 2018
-
- Which is a synonym of fugacious?
Can you spell these 10 commonly misspelled words?
TAKE THE QUIZ
Test Your Knowledge - and learn some interesting things along the way.
TAKE THE QUIZ
Share undecillion
Resources for undecillion