The pelvis and femur are the two main bones that form the hip joint.

The main bone of contention was the price.

The main bone of contention is not drugs, but direction.

The scapula is one of the main bones of the shoulder joint.

The main bone of contention in health-reform legislation has been the public option, which would allow individuals to purchase government health insurance.

Most birds have hollow main bones with air sacs in them.

I think this should be the main bone of our contention at the five-yearly review conferences.

This is the main bone of contention between Council and Parliament.

A sharp blow from a catapulted weight broke the main bone in her right wing.

Angel was born missing the main bone in his left thumb, leaving it hanging useless.