Share this entry

Pronunciation: /ˈpɛtə/

Definition of peta- in English:

combining form

(Used in units of measurement) denoting a factor of 1015: petabytes


From pe(n)ta- (see penta-), based on the supposed analogy of tera- and tetra-.

Definition of peta- 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.

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources