medullae medullae


  1. (n) a white fatty substance that forms a medullary sheath around the axis cylinder of some nerve fibers
  2. (n) lower or hindmost part of the brain; continuous with spinal cord; (`bulb' is an old term for medulla oblongata)
  3. (n) the inner part of an organ or structure in plant or animal
Word of the Day
ennui ennui
/ɛ ˈnu i /