Marrow vs. Medulla — What's the Difference?

Bone marrow.

The inner core of certain organs or body structures, such as the marrow of bone.

The spinal cord.

The medulla oblongata.

The marrow squash.

See myelin.

The inmost, choicest, or essential part; the pith.

The pith in the stems or roots of certain plants.

Strength or vigor; vitality.

The central portion of a thallus in certain lichens and red or brown algae.

(uncountable) The substance inside bones which produces blood cells.

The soft inner part of something, especially the pith of a fruit.

(countable) A kind of vegetable like a large courgette/zucchini or squash.

(anatomy) The inner substance of various organs and structures, especially the marrow of bones.

The pith of certain plants.

The medulla oblongata.

The essence; the best part.

(botany) The internal tissue of a plant.

The inner meaning or purpose.

Marrow; pith; hence, essence.

Bone marrow biopsy.

The marrow of bones; the deep or inner portion of an organ or part; as, the medulla, or medullary substance, of the kidney; specifically, the medula oblongata.

(obsolete) Semen.

A soft tissue, occupying the center of the stem or branch of a plant; pith.

A friend, pal, buddy, mate.

See medulla oblongata.

One of a pair; a match; a companion; an intimate associate.

A white fatty substance that forms a medullary sheath around the axis cylinder of some nerve fibers

The tissue which fills the cavities of most bones; the medulla. In the larger cavities it is commonly very fatty, but in the smaller cavities it is much less fatty, and red or reddish in color.

Lower or hindmost part of the brain; continuous with spinal cord; (`bulb' is an old term for medulla oblongata);

The essence; the best part.

The inner part of an organ or structure in plant or animal

One of a pair; a match; a companion; an intimate associate.

To fill with, or as with, marrow or fat; to glut.

The fatty network of connective tissue that fills the cavities of bones

Any of various squash plants grown for their elongated fruit with smooth dark green skin and whitish flesh

Very tender and very nutritious tissue from marrowbones

Large elongated squash with creamy to deep green skins

The choicest or most essential or most vital part of some idea or experience;