coccyx, tail bone - the end of the vertebral column in humans and tailless apes

hipbone, innominate bone - large flaring bone forming one half of the pelvis; made up of the ilium and ischium and pubis

ilium - the upper and widest of the three bones making up the hipbone

ischial bone, ischium, os ischii - one of the three sections of the hipbone; situated below the ilium

os pubis, pubic bone, pubis - one of the three sections of the hipbone; together the two pubic bones form the front of the pelvis

sacrum - 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

girdle - an encircling or ringlike structure

appendicular skeleton - the part of the skeleton that includes the pectoral girdle and the pelvic girdle and the upper and lower limbs

articulatio coxae, coxa, hip joint, hip - the ball-and-socket joint between the head of the femur and the acetabulum

bodily cavity, cavum, cavity - (anatomy) a natural hollow or sinus within the body

kidney - either of two bean-shaped excretory organs that filter wastes (especially urea) from the blood and excrete them and water in urine; urine passes out of the kidney through ureters to the bladder