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1913 - Webster's Revised Unabridged Dictionary
By Noah Webster.
 
1846 - Medical lexicon: a dictionary of medical science
By Robley Dunglison
 
1916 - Appleton's medical dictionary
By Smith Ely Jelliffe

Word of the day

nerve fiber

  • a threadlike extension of nerve cell Slender processes of neurons, especially the prolonged axons that conduct nerve impulses. One units trunk; it is axis process a neuron and medullated, i. e. white substance Schwann (myelin), medullated; either the medullated non-axis-cylinder or may not be surrounded by primitive sheath neurilemma, so that there are four forms of nerve-fibers.
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