ischium

English Thesaurus

1. one of the three sections of the hipbone; situated below the ilium (noun.body)

hypernym	:	bone, os,
definition	:	rigid connective tissue that makes up the skeleton of vertebrates (noun.body)

part meronym	:	articulatio coxae, coxa, hip, hip joint,
definition	:	the ball-and-socket joint between the head of the femur and the acetabulum (noun.body)

part meronym	:	hip, pelvic arch, pelvic girdle, pelvis,
definition	:	the structure of the vertebrate skeleton supporting the lower limbs in humans and the hind limbs or corresponding parts in other vertebrates (noun.body)