nnoun.substancea white fatty substance that forms a medullary sheath around the axis cylinder of some nerve fibersSynset:myelin myeline
Derivationally Related Form:myelinic
Substance Holonyms:medullary sheath myelin sheath
Hypernyms:fat
Inherited Hypernyms:myelinfatlipidmacromoleculemoleculeunitthingphysical entityentity
Inherited Hypernyms:myelinfatlipidmacromoleculeorganic compoundcompoundchemicalmaterialsubstancematterphysical entityentity
Inherited Hypernyms:myelinfatlipidmacromoleculeorganic compoundcompoundchemicalmaterialsubstancepartrelationabstractionentity
nnoun.bodylower or hindmost part of the brain; continuous with spinal cord; ('bulb' is an old term for medulla oblongata)Synset:bulb medulla oblongata
Examples:- the medulla oblongata is the most vital part of the brain because it contains centers controlling breathing and heart functioning
Derivationally Related Form:bulbarmedullary
Part Holonyms:brain-stem brain stem brainstem
Hypernyms:neural structure
Inherited Hypernyms:medulla oblongataneural structurestructurebody partpartthingphysical entityentity
Part Meronyms:respiratory center
nnoun.bodythe inner part of an organ or structure in plant or animalAntonyms:cortex
Derivationally Related Form:medullary
Hypernyms:animal tissue plant tissue
Inherited Hypernyms:medullaanimal tissuetissuebody partpartthingphysical entityentity
Inherited Hypernyms:medullaplant tissueplant partnatural objectwholeobjectphysical entityentity
Direct Hyponyms:adrenal medulla
Full Hyponyms:adrenal medulla