Share this entry

proto- Syllabification: proto-
Pronunciation: /ˈprōdō/
(usually prot- before a vowel)

Definition of proto- in English:


1.1First; anterior; relating to a precursor: protomartyr protozoan


From Greek prōtos 'first'.

Definition of proto- 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