marrow: Meaning and Definition of

mar•row

1. 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. See

mar•row

1. a partner; fellow worker.
2. a spouse; helpmate.
3. a companion; close friend.