notochord
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About Our Definitions: All forms of a word (noun, verb, etc.) are now displayed on one page.no·to·chord
noun \ˈnō-tə-ˌkȯrd\Definition of NOTOCHORD
: a longitudinal flexible rod of cells that in the lowest chordates (as a lancelet or a lamprey) and in the embryos of the higher vertebrates forms the supporting axis of the body
— no·to·chord·al \ˌnō-tə-ˈkȯr-dəl\ adjective
See Origin of NOTOCHORD
Greek nōton, nōtos back + Latin chorda cord — more at cord
First Known Use: 1848
no·to·chord
noun \ˈnōt-ə-ˌkȯ(ə)rd\ (Medical Dictionary)Medical Definition of NOTOCHORD
: a longitudinal flexible rod of cells that in the lowest chordates (as a lancelet or a lamprey) and in the embryos of the higher vertebrates forms the supporting axis of the body, that is almost obliterated in the adult of the higher vertebrates as the bodies of the vertebrae develop, and that arises as an outgrowth from the dorsal lip of the blastopore extending forward between epiblast and hypoblast in the middorsal line
—no·to·chord·al \ˌnōt-ə-ˈkȯrd-əl\ adjective
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