Dictionary

zepto-

zepto-

combining form zep·to-

Definition of ZEPTO-

:  one sextillionth (10−21) part of <zeptosecond>

Origin of ZEPTO-

International Scientific Vocabulary, probably alteration of hepta-; from the fact that 1021 is the seventh power of 103

Browse

Next Word in the Dictionary: zeptosecondPrevious Word in the Dictionary: zeppoleAll Words Near: zepto-
March 03, 2015
thanatology Hear it
The study of death and grieving
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears