septillion

play
noun, often attributive sep·til·lion \sep-ˈtil-yən\

Definition of septillion

  1. US :  a number equal to 1 followed by 24 zeros — see number table; also, British :  a number equal to 1 followed by 42 zeros — see number table

Origin and Etymology of septillion

French, from Latin septem + French -illion (as in million) — more at seven


First Known Use: 1690

Learn More about septillion


Seen and Heard

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

WORD OF THE DAY

contemplative of or relative to the past

Get Word of the Day daily email!