| 1. |
(noun) the inner part of an organ or structure in plant or animal |
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Related Words: adrenal medulla, animal tissue, plant tissue |
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Antonyms: cortex |
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| 2. |
(noun) 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 funtioning" |
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Synonyms: bulb, medulla oblongata |
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Related Words: neural structure |
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| 3. |
(noun) a white fatty substance that forms a medullary sheath around the axis cylinder of some nerve fibers |
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Synonyms: myelin, myeline |
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Related Words: fat |
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