medulla
definition: the inner part of an organ or structure in plant or animal
example: The renal medulla is the innermost part of the kidneys.
speech part: noun
synonyms:
definition: lower or hindmost part of the brain
example:
speech part: noun
synonyms:
bulb
definition: a white fatty substance that forms a medullary sheath around the axis cylinder of some nerve fibers
example:
speech part: noun