Definition of notochord in English:


Line breaks: noto|chord
Pronunciation: /ˈnəʊtə(ʊ)kɔːd


  • A cartilaginous skeletal rod supporting the body in all embryonic and some adult chordate animals.
    More example sentences
    • In those chordates which lack bone, muscles work against the notochord to move the animal.
    • In the evolution of vertebrates, long bodies with continuously flexible notochords and segmental muscles existed before the appearance of segmental vertebrae.
    • They all have, at some embryonic stage, a notochord, flanked by muscle, and a dorsal neural tube.


mid 19th century: from Greek nōton 'back' + chord2.

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