Definition of notochords Notochords

We found 3 definitions of notochords from 2 different sources.

What does notochords mean?

Wiktionary

notochords (Noun)
Plural of notochord.

Part of speech

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notochords, noun, plural of notochord.

WordNet

Noun

Plural: notochords

notochord - 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

spinal column, vertebral column, rachis, backbone, spine, back the series of vertebrae forming the axis of the skeleton and protecting the spinal cord; "the fall broke his back"

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Wiktionary

notochord (Noun)
A flexible rodlike structure that forms the main support of the body in the lowest chordates; a primitive spine.
notochord (Noun)
A similar structure found in the embryos of vertebrates from which the spine develops.

Webster DictionaryWebster's Unabridged Dictionary 📘

notochord (n.)
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 vertebrae and the posterior part of the base of the skull are developed; the chorda dorsalis. See Illust. of Ectoderm.

Chambers DictionaryChamber's 20th Century Dictionary 📕

notochord
nō′tō-kord, n. a simple cellular rod, the basis of the future spinal column, persisting throughout life in many lower vertebrates, as the amphioxus, &c.—adj. Nō′tochordal. [Gr. nōtos, the back, chordē, a string.]