medulla

Nouns

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

Synonyms

myelin myeline medulla oblongata bulb

Antonyms

cortex

Words of close approximity

medulla oblongata medullary medullary ray medullary sheath medulla spinalis medullated medullated nerve fiber