Medullary

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Medullary \Med"ul*la*ry\, a. [L. medullaris, fr. medulla marrow:
     cf. F. m['e]dullaire.]
     1. (Anat.)
        (a) Pertaining to, consisting of, or resembling, marrow or
            medulla.
        (b) Pertaining to the medula oblongata.


            [1913 Webster]
  
     2. (Bot.) Filled with spongy pith; pithy.
        [1913 Webster]
  
     {Medullary groove} (Anat.), a groove, in the epiblast of the
        vertebrate blastoderm, the edges of which unite, making a
        tube (the medullary canal) from which the brain and spinal
        cord are developed.
  
     {Medullary rays} (Bot.), the rays of cellular tissue seen in
        a transverse section of exogenous wood, which pass from
        the pith to the bark.
  
     {Medullary sheath} (Anat.), the layer of white semifluid
        substance (myelin), between the primitive sheath and axis
        cylinder of a medullated nerve fiber.
        [1913 Webster]

From WordNet (r) 2.0 [wn]:

  medullary
       adj 1: containing or consisting of or resembling bone marrow
       2: of or relating to the medulla oblongata
       3: of or relating to the medulla of any body part