[Theoric Windcaller]

I've always had the impression that teh Uruk-Hai were half-Goblin half-Orc. I've read the Hobbit and the LotR trilogy, but, in the FotR movie, Gandalf is talking to Elrond and says this:

Elrond: And Saruman you tell me has betrayed us; our list of allies grows thin.

Gandalf: His treachery runs deeper than you know. Saruman is breeding Orc with Goblin men.


Now, that makes the impression that the Uruk Hai were Goblin and Orc. I might be wrong, so, if I am, someone tell me please.