a fruit of a plant of the gourd family, used as a vegetable
a plant of the gourd family cultivated for its smooth-skinned elongated fruit: Cucurbita pepo
a fruit of this plant, used as a vegetable; a vegetable marrow
a soft tissue that fills the cavities and porous part of most bones and in which red blood cells and certain white blood cells are produced
the substance of the spinal cord
the inmost, best, or essential part; the core
you, the injured pith and marrow of this land — Dickens
to the marrow
completely; through and through
a sportsman to the marrow
[Old English mearg]