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Meaning of nerve cord

nerve' cord"

Pronunciation: [key]
  1. a single hollow tract of nervous tissue that constitutes the central nervous system of chordates and develops into the spinal cord and brain in vertebrates.
  2. a solid double strand of nerve fibers along the length of the body in elongate invertebrates, as earthworms and insects, connecting with a pair of nerve ganglia at each body segment.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.