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medulla definition

me·dulla (mi dul′ə)

noun pl. medullas -·las or medullae -·lae (-ē)

  1. Anat.
    1. medulla oblongata
    2. the inner substance of an organ, as of the kidney or adrenal gland
    3. bone marrow
  2. Bot. pith (sense )

Etymology: L, marrow, pith: see smear

Related Forms:

  • medullary med′·ul·lar′y (med′ə ler′ē, mej′-; mi dul′ər ē) adjective

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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