Found 2 items, similar to notochord.
English → English (WordNet) Definition: notochord notochord n : 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
English → English (gcide) Definition: Notochord Notochord \No"to*chord\, n. [Gr. nw^ton 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 vertebr[ae] and the posterior part of the base of the skull are developed; the chorda dorsalis. See Illust. of Ectoderm. [1913 Webster]