medulla, n.
(medullae)
(medullae)
the inner part of an organ or structure in plant or animal
<noun.body>
medulla
lower or hindmost part of the brain; continuous with spinal cord; (`bulb' is an old term for medulla oblongata)
<noun.body>
bulb medulla medulla oblongata
sample sentences
"the medulla oblongata is the most vital part of the brain because it contains centers controlling breathing and heart functioning"
lexical pointers
derivationally related form
lexical pointers
derivationally related form
semantic pointers
hypernym
part holonym
part meronym
a white fatty substance that forms a medullary sheath around the axis cylinder of some nerve fibers
<noun.substance>
medulla myelin myeline
lexical pointers
derivationally related form