Thesaurus: medulla

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1. n. Marrow; pith; hence, essence.
2. 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.
3. n. A soft tissue, occupying the center of the stem or branch of a plant; pith.
4. n. a white fatty substance that forms a medullary sheath around the axis cylinder of some nerve fibers
5. n. lower or hindmost part of the brain; continuous with spinal cord; (‘bulb’ is an old term for medulla oblongata)
6. n. the inner part of an organ or structure in plant or animal
7. 1. Marrow; pith; hence, essence. [Obs.] Milton. 2. (Anat.) 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. 3. (Bot.) A soft tissue, occupying the center of the stem or branch of a plant; pith. Medulla oblongata. Etym: [L., oblong medulla] (Anat.), the posterior part of the brain connected with the spinal cord. It includes all the hindbrain except the cerebellum and pons, and from it a large part of the cranial nerves arise. It controls very largely respiration, circulation, swallowing, and other functions, and is the most vital part of the brain; -- called also bulb of the spinal cord. See Brain.
8. The marrow of bones; the deep or inner portion of an organ orpart; as, the medulla, or medullary substance, of the kidney;specifically, the medula oblongata.
9. n:100 n. the inner part of an organ or structure in plant or animal