The Collaborative International Dictionary of English v.0.48:
Pretzel \Pret"zel\, n. [G. pretzel, bretzel. Cf. Bretzel.] A kind of German biscuit or cake in the form of a twisted ring, salted on the outside. [1913 Webster]WordNet (r) 3.0 (2006):
pretzel n 1: glazed and salted cracker typically in the shape of a loose knot