| 单词 | medullary sheath |
| 释义 | medullary sheath (once / 454589 pages) n WORD FAMILY medullary sheath USAGE EXAMPLESA, Fragment showing Sternbergia pith and wood; a, Medullary sheath; b, Pith; c, Wood; d, Section of pith. Dawson, Sir J. William, The Chain of Life in Geological Tim...(2011) MS, medullary sheath, the dark, irregular ring just inside the bundles. Noyes, William, Wood and Forest(2011) Medullary Sheath, a set of ducts just around the pith, 140. Gray, Asa, The Elements of Botany—For Beginner...(2010) n a layer of myelin encasing (and insulating) the axons of medullated nerve fibers Syn|Hyper myelin sheath case, sheath an enveloping structure or covering enclosing an animal or plant organ or part |
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