Definitions

1. adjective

Relating to the inner layer of the bone, especially the layer of bone next to the bone marrow.

“The endosteal layer of the femur was damaged during the surgical procedure.”

2. noun

A layer of bone next to the bone marrow.

“The endosteum was found to be thickened due to the chronic illness.”

3. noun

A membrane lining the medullary cavity of a long bone.

“The endosteal membrane was studied under a microscope to understand bone growth.”