notochord: Meaning and Definition of

no•to•chord

Pronunciation: (nō'tu-kôrd"), [key]
— n. Embryol.
  1. a rodlike cord of cells that forms the chief axial supporting structure of the body of the lower chordates, as amphioxus and the cyclostomes, and of the embryos of the vertebrates.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also:
noto- Notogaea
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