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Từ điển Oxford Learners Wordfinder Dictionary
medulla


noun
1. a white fatty substance that forms a medullary sheath around the axis cylinder of some nerve fibers
Syn:
myelin, myeline
Derivationally related forms:
myelinic (for: myelin)
Hypernyms:
fat
Substance Holonyms:
medullary sheath, myelin sheath
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
Derivationally related forms:
bulbar (for: bulb), medullary
Hypernyms:
neural structure
Part Holonyms:
brainstem, brain-stem, brain stem
Part Meronyms:
respiratory center
3. the inner part of an organ or structure in plant or animal
Ant:
cortex
Derivationally related forms:
medullary
Hypernyms:
animal tissue, plant tissue
Hyponyms:
adrenal medulla

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