Haunch (hänch; 277), n. [F. hanche, of German origin; cf. OD. hancke, hencke, and also OHG. ancha; prob. not akin to E. ankle.] 1. The hip; the projecting region of the lateral parts of the pelvis and the hip joint; the hind part.

2. Of meats: The leg and loin taken together; as, a haunch of venison.

Haunch bone. See Innominate bone, under Innominate. -- Haunches of an arch(Arch.), the parts on each side of the crown of an arch. (See Crown, n., 11.) Each haunch may be considered as from one half to two thirds of the half arch.