1. The fatty network of connective tissue that fills the cavities of bones
   "Bone marrow transplants can be used to treat certain types of cancer";
   - marrow
    
2. Very tender and very nutritious tissue from marrowbones
   "The chef prepared a dish of roasted bone marrow";
   - marrow

Derived forms: bone marrows

Type of: connective tissue, dainty, delicacy, goody, kickshaw [archaic], treat

Part of: bone, immune system, marrowbone, os[2]

Encyclopedia: Bone marrow