The meaning of Medulla and additional information.

Medulla(n.) Marrow; pith; hence, essence.

Medulla(n.) 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.

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