Definition of Notochard
No"to*chord (?), n. [Gr. &?; the back +
E. chord.] (Anat.) An elastic cartilagelike rod
which is developed beneath the medullary groove in the vertebrate
embryo, and constitutes the primitive axial skeleton around which the
centra of the vertebræ and the posterior part of the base of
the skull are developed; the chorda dorsalis. See
Illust. of Ectoderm.
- Webster's Unabridged Dictionary (1913)
- A flexible rodlike structure that forms the main support of the body in the lowest chordates; a primitive spine
- A similar structure found in the embryos of vertebrates from which the spine develops
- The Nuttall Encyclopedia
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