资料来源 : pyDict
medulla的复数形
资料来源 : WordNet®
medulla
n 1: a white fatty substance that forms a medullary sheath around
the axis cylinder of some nerve fibers [syn: {myelin}, {myeline}]
2: 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" [syn: {medulla oblongata}, {bulb}]
3: the inner part of an organ or structure in plant or animal
[ant: {cortex}]
[also: {medullae} (pl)]
medullae
See {medulla}