pro-
1pro-
prefixDefinition of PRO-
1
a : earlier than : prior to : before <prothalamion> b : rudimentary : prot- <pronucleus> c : precursory <proinsulin>
2
a : located in front of or at the front of : anterior to <procephalic> b : front : anterior <prothorax>
3
: projecting <prognathous>
Origin of PRO-
New Latin, from Latin, from Greek, before, forward, forth, for, from pro — more at for



