| 1. | Anatomy. a soft, fatty, vascular tissue in the interior cavities of bones that is a major site of blood cell production. |
| 2. | the inmost or essential part: to pierce to the marrow of a problem. |
| 3. | strength or vitality: Fear took the marrow out of him. |
| 4. | rich and nutritious food. |
| 5. | Chiefly British. vegetable marrow. |

marrow mar·row (mār'ō)
n.
Bone marrow.
The spinal cord.
| marrow (mār'ō) Pronunciation Key
See bone marrow. |