protero-
a combining form meaning “earlier,” “before,” “former,” used in the formation of compound words: proterotype.
Also
especially before a vowel,
proter-.
Compare
proto-.
Origin of protero-
Words nearby protero-
proteolytic,
proteome,
proteometabolism,
proteomics,
proteose,
protero-,
proterotype,
proterozoic,
protest,
protest flag,
protest vote
British Dictionary definitions for protero-
protero-
combining form
anterior or former in time, place, order, etc
proterozoic
Word Origin for protero-
from Greek
proteros fore