What sort of terminology?
Bow parts like riser, fades, shelf, handle, nocks, back or belly.
Bow types and building terms like tiller, reflex, deflex, selfbow, composite bow, backed bow, laminate bow, english longbow, american longbow, static recurve, working recurve, flatbow etc.
All of these can be found in the Traditional Bowyers Bible series of books and in many other places or like others said, just by asking here.
By the way, how about some pics of the bow you made for your son. Everyone always likes to see someones first bow.