MeSH definition : One of three bones that make up the coxal bone of the pelvic girdle. In tetrapods,
it is the part of the pelvis that projects backward on the ventral side, and in primates,
it bears the weight of the sitting animal.;
CISMeF synonym : ischiums;
Wikipedia link : https://en.wikipedia.org/wiki/Ischium;
One of three bones that make up the coxal bone of the pelvic girdle. In tetrapods,
it is the part of the pelvis that projects backward on the ventral side, and in primates,
it bears the weight of the sitting animal.