notochord
English Thesaurus
1. a flexible rodlike structure that forms the supporting axis of the body in the lowest chordates and lowest vertebrates and in embryos of higher vertebrates (noun.animal)
| hypernym | : | back, backbone, rachis, spinal column, spine, vertebral column, |
| definition | : | the series of vertebrae forming the axis of the skeleton and protecting the spinal cord (noun.body) |
| hyponym | : | urochord, |
| definition | : | a notochord of a larval tunicate typically confined to the caudal region (noun.animal) |
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