Definitions for ROCrɒk
Random House Webster's College Dictionary
(in medieval Asian literature and lore, as The Arabian Nights' Entertainments) a predatory bird of great size and strength.
Origin of roc:
1570–80; < Ar rukhkh, prob. < Pers rukh; cf. rook2
mythical bird of prey having enormous size and strength
An enormous mythical bird in Eastern legend.
a monstrous bird of Arabian mythology