Share this entry
Pronunciation: /ˈzɛptəʊ/

Definition of zepto- in English:


(Used in units of measurement) denoting a factor of 10−21: zeptosecond


Adapted from septi-, on the pattern of combining forms such as peta- and exa-.

Definition of zepto- in:
Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Subscribe to remove adverts and access premium resources

More words in this category

deca- decibel erg 1 f faraday