wedge-shaped bone consisting of five fused vertebrae forming the posterior part of the pelvis; its base connects with the lowest lumbar vertebra and its tip with the coccyx | either side of the body below the waist and above the thigh |
| the structure of the vertebrate skeleton supporting the lower limbs in humans and the hind limbs or corresponding parts in other vertebrates |
| the ball-and-socket joint between the head of the femur and the acetabulum |
| the fruit of a rose plant |
| (architecture) the exterior angle formed by the junction of a sloping side and a sloping end of a roof |