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3 definitions found
 for medullated
From The Collaborative International Dictionary of English v.0.48 :

  Medullated \Me*dul"la*ted\, a. (Anat.)
     Furnished with a medulla or marrow, or with a medullary
     sheath; as, a medullated nerve fiber.
     [1913 Webster]

From The Collaborative International Dictionary of English v.0.48 :

  nerve \nerve\ (n[~e]rv), n. [OE. nerfe, F. nerf, L. nervus, akin
     to Gr. ney^ron sinew, nerve; cf. neyra` string, bowstring;
     perh. akin to E. needle. Cf. Neuralgia.]
     1. (Anat.) One of the whitish and elastic bundles of fibers,
        with the accompanying tissues, which transmit nervous
        impulses between nerve centers and various parts of the
        animal body.
        [1913 Webster]
     Note: An ordinary nerve is made up of several bundles of
           nerve fibers, each bundle inclosed in a special sheath
           (the perineurium) and all bound together in a
           connective tissue sheath and framework (the epineurium)
           containing blood vessels and lymphatics.
           [1913 Webster]
     2. A sinew or a tendon. --Pope.
        [1913 Webster]
     3. Physical force or steadiness; muscular power and control;
        constitutional vigor.
        [1913 Webster]
              he led me on to mightiest deeds,
              Above the nerve of mortal arm.        --Milton.
        [1913 Webster]
     4. Steadiness and firmness of mind; self-command in personal
        danger, or under suffering; unshaken courage and
        endurance; coolness; pluck; resolution.
        [1913 Webster]
     5. Audacity; assurance. [Slang]
        [1913 Webster]
     6. (Bot.) One of the principal fibrovascular bundles or ribs
        of a leaf, especially when these extend straight from the
        base or the midrib of the leaf.
        [1913 Webster]
     7. (Zool.) One of the nervures, or veins, in the wings of
        [1913 Webster]
     Nerve cell (Anat.), a neuron, one of the nucleated cells
        with which nerve fibers are connected; a ganglion cell
        is one type of nerve cell.
     Nerve fiber (Anat.), one of the fibers of which nerves are
        made up. These fibers are either medullated or
        nonmedullated. In both kinds the essential part is the
        translucent threadlike axis cylinder which is continuous
        the whole length of the fiber.
     Nerve stretching (Med.), the operation of stretching a
        nerve in order to remedy diseases such as tetanus, which
        are supposed to be influenced by the condition of the
        nerve or its connections.
        [1913 Webster]

From WordNet (r) 3.0 (2006) :

      adj 1: (of neurons) covered with a layer of myelin [syn:
             myelinated, medullated] [ant: unmyelinated]

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