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";
   - bone marrow
    
2. Very tender and very nutritious tissue from marrowbones
   "The chef prepared a dish of roasted bone marrow";
   - bone marrow
    
3. The choicest or most essential or most vital part of some idea or experience
   "the marrow of the prosecutor's argument";
   - kernel, substance, core, center [US], centre [Brit, Cdn], essence, gist, heart, heart and soul, inwardness, meat, nub, pith, sum, nitty-gritty [informal]
    
4. [Brit] Any of various squash plants grown for their elongated fruit with smooth dark green skin and whitish flesh
   "vegetable marrow squash is a popular vegetable in British cuisine";
   - marrow squash [N. Amer], vegetable marrow [Brit]
    
5. [Brit] Large elongated squash with creamy to deep green skins
   "The vegetable marrow was stuffed with a savoury rice mixture";
   - vegetable marrow [Brit]

Derived forms: marrows

Type of: cognitive content, connective tissue, content, Cucurbita pepo melopepo, dainty, delicacy, goody, kickshaw [archaic], mental object, summer squash, summer squash vine, treat

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

Encyclopedia: Marrow, Christopher