Definitions of medulla:
  • noun:   the inner part of an organ or structure in plant or animal
  • noun:   lower or hindmost part of the brain; continuous with spinal cord; (`bulb' is an old term for medulla oblongata)
    Example: "The medulla oblongata is the most vital part of the brain because it contains centers controlling breathing and heart functioning"
  • noun:   a white fatty substance that forms a medullary sheath around the axis cylinder of some nerve fibers

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Book See medulla used in context: 7 rhymes, several books and articles.

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