Dictionary
Find
in
Dictionary
Thesaurus
Translations

Click to move up the list of words
octant
octapeptide
octavalent
octave
octave coupler
octavo
octennial
octet
octillion
octo-
October
octocentenary
octodecillion
octodecimo
octogenarian
octonary
octopi
Click to move down the list of words
Also available:

World English Dictionary
Dictionnaire Français

octillion

oc·til·lion [ ok tíllyən ] (plural oc·til·lions)


noun 
Definition:
 
1. 1 followed by 27 zeros: the number equal to 1027, written as 1 followed by 27 zeros

2. U.K. 1 followed by 48 zeros: the number equal to 1048, written as 1 followed by 48 zeros

[Late 17th century. <octo- + million]
Advertisement

© 2009 Microsoft