Definitions

1. adjective

relating to the ischium, a bone in the pelvis, or the area near it

“The ischial tuberosity is a common point for muscle attachment.”

2. noun

a bone in the pelvis

“The ischial bone forms part of the sitting bone.”

3. noun

the bony projection on either side of the sitting bone

“The ischial tuberosity supports the body’s weight when sitting.”