Medulla

//məˈdʌlə// noun

Definitions

Noun
  1. 1
    The soft inner part of something, especially the pith of a fruit.
  2. 2
    the inner part of an organ or structure in plant or animal wordnet
  3. 3
    The inner substance of various organs and structures, especially the marrow of bones.
  4. 4
    lower or hindmost part of the brain; continuous with spinal cord; (‘bulb’ is an old term for medulla oblongata) wordnet
  5. 5
    The medulla oblongata.
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  1. 6
    a white fatty substance that forms a medullary sheath around the axis cylinder of some nerve fibers wordnet
  2. 7
    The internal tissue of a plant.

Etymology

Borrowed from Latin medulla (“pith, marrow”), perhaps from medius (“middle”).

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