pelvis

n. pelvic girdle, structure made from a combination of several bones in the lower abdomen (Anatomy)

The pelvis (pl. pelvises or pelves) is the bony structure located at the base of the spine (properly known as the caudal end). The pelvis incorporates the socket portion of the hip joint for each leg (in bipeds) or hind leg (in quadrupeds). It forms the lower limb (or hind-limb) girdle of the skeleton.
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Pelvis /pel·vis/ pl. pel´ves [L.] the lower portion of the trunk, bounded anteriorly and laterally by the two hip bones and posteriorly by the [more]Pelvis - Community and Resources

Noun
1. the structure of the vertebrate skeleton supporting the lower limbs in humans and the hind limbs or corresponding parts in other vertebrates
(synonym) pelvic girdle, pelvic arch, hip
(hypernym) girdle
(part-holonym) appendicular skeleton
(part-meronym) coccyx, tail bone
2. a structure shaped like a funnel in the outlet of the kidney into which urine is discharged before passing into the ureter
(synonym) renal pelvis
(hypernym) cavity, bodily cavity, cavum
(part-holonym) kidney

n. pelvis, pelvic girdle, structure made from a combination of several bones in the lower abdomen (Anatomy)