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1 a) of or relating to the medulla of any body part or organ
b) containing, consisting of, or resembling bone marrow
c) of or relating to the medulla oblongata or the spinal cord
d) of, relating to, or formed of the dorsally located embryonic ectoderm destined to sink below the surface and become neural tissue
2) resembling bone marrow in consistency used of cancers
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med·ul·lary (medґə-lar″e) (mə-dulґə-re) [L. medullaris] 1. pertaining to a medulla. 2. pertaining to bone marrow. Called also myeloid. 3. pertaining to the spinal cord. Called also myeloid.Medical dictionary. 2011.