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Noun: bone marrow
  1. The fatty network of connective tissue that fills the cavities of bones
    - marrow
  2. Very tender and very nutritious tissue from marrowbones
    - 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