Definition of notochord in English:
notochord
noun ˈnəʊtə(ʊ)kɔːdˈnōdəˌkôrd
Zoology A cartilaginous skeletal rod supporting the body in all embryonic and some adult chordate animals.
Example sentencesExamples
- They all have, at some embryonic stage, a notochord, flanked by muscle, and a dorsal neural tube.
- In the evolution of vertebrates, long bodies with continuously flexible notochords and segmental muscles existed before the appearance of segmental vertebrae.
- Moreover, these ectopic neural tubes were patterned appropriately with respect to the notochord and dorsal ectoderm.
- In those chordates which lack bone, muscles work against the notochord to move the animal.
- Let us review the fundamental features of the vertebrate body as context for notochords and backbones.
Origin
Mid 19th century: from Greek nōton 'back' + chord2.