Meaning of neural tube

neu'ral tube'

Pronunciation: [key]
— Embryol. Embryol.
  1. a tube formed by the closure of ectodermal tissue in the early vertebrate embryo that later develops into the brain, spinal cord, nerves, and ganglia.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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