Spinal Cord
noun, の adjective
A person of great stature probably has a lot of marrow around their spinal cord. (Tall stature = longer spinal cord, after all.)
Be careful with this one — it actually has nothing to do with the bone marrow in your spine, and everything to do with your spinal cord. You know, that nerve superhighway protected by your spine's vertebrae? That thing. They just called it marrow in the old days because it was something soft they found inside the spine.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
事故で脊髄に傷がついてしまったのです。
My spinal cord was damaged in the accident.