noun \ˈis-kē-əm\
plural is·chia \-ə\

Definition of ISCHIUM

: the dorsal and posterior of the three principal bones composing either half of the pelvis consisting in humans of a thick portion, a large rough eminence on which the body rests when sitting, and a forwardly directed ramus which joins that of the pubis

Illustration of ISCHIUM

Seen & Heard

What made you want to look up ischium? Please tell us where you read or heard it (including the quote, if possible).