schwann : Idioms & Phrases
schwann cell
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noun any cell that covers the nerve fibers in the peripheral nervous system and forms the myelin sheath
WordNet
schwann's white substance
Schwann's white" sub"stance
Definitions
(Anat.) The substance of the medullary sheath.
Webster 1913
theodor schwann
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noun German physiologist and histologist who in 1838 and 1839 identified the cell as the basic structure of plant and animal tissue (1810-1882)
Schwann.