the lowermost of the three sections of the innominate bone; bone on which the body rests when sitting
Origin of ischiumClassical Latin ; from Classical Greek ischion, hip, hip joint
The lowest of the three major bones that constitute each half of the pelvis.
Origin of ischiumLatin, hip joint, from Greek iskhion.
- (anatomy) The lowest of the three bones that make up each side of the pelvis. [from 17th c.]
From Latin ischium, from Ancient Greek ἰσχίον (iskhion, “hip joint”).