Definitions for notochord
ˈnoʊ təˌkɔrdno·to·chord

Princeton's WordNetRate this definition:0.0 / 0 votes

1. notochordnoun

   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

WiktionaryRate this definition:0.0 / 0 votes

1. notochordnoun

   A flexible rodlike structure that forms the main support of the body in the lowest chordates; a primitive spine

2. notochordnoun

   A similar structure found in the embryos of vertebrates from which the spine develops

ChatGPTRate this definition:0.0 / 0 votes

1. notochord

   A notochord is a flexible, rod-shaped body found in embryos of all chordates. It is the structure from which the spinal column develops and it provides support to the body and plays a key role in the development of the nervous system. In many species, the notochord is replaced by the vertebral column as the organism matures.

Webster DictionaryRate this definition:0.0 / 0 votes

1. Notochordnoun

   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

2. Etymology: [Gr. nw^ton the back + E. chord.]

WikidataRate this definition:0.0 / 0 votes

1. Notochord

   The notochord is a flexible rod-shaped body found in embryos of all chordates. It is composed of cells derived from the mesoderm and defines the primitive axis of the embryo. In some chordates, it persists throughout life as the main axial support of the body, while in most vertebrates it becomes the nucleus pulposus of the intervertebral disc. The notochord is found ventral to the neural tube. Notochords were the first "backbones" serving as support structures in chordates such as Haikouichthys. Notochords were advantageous to primitive fish-ancestors because they were a rigid structure for muscle attachment, yet flexible enough to allow more movement than, for example, the exoskeleton of the dominant animals of that time. Embryos of vertebrates have notochords today, as it retained a key role in signalling and coordinating development even as it was lost in most adults. In most tetrapods, they eventually develop into the nucleus pulposus of the intervertebral discs.

Chambers 20th Century DictionaryRate this definition:0.0 / 0 votes

1. 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.]

U.S. National Library of MedicineRate this definition:0.0 / 0 votes

1. Notochord

   A cartilaginous rod of mesodermal cells at the dorsal midline of all CHORDATE embryos. In lower vertebrates, notochord is the backbone of support. In the higher vertebrates, notochord is a transient structure, and segments of the vertebral column will develop around it. Notochord is also a source of midline signals that pattern surrounding tissues including the NEURAL TUBE development.

Matched Categories

1. • Spinal Column

How to pronounce notochord?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

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   Indian

   Priya

   Indian

   Neerja

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   Zira

   US English

   Oliver

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How to say notochord in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of notochord in Chaldean Numerology is: 8

2. Pythagorean Numerology

   The numerical value of notochord in Pythagorean Numerology is: 4

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References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=notochord
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Notochord
3. ^ ChatGPT
   https://chat.openai.com
4. ^ Webster Dictionary
   https://www.merriam-webster.com/dictionary/notochord
5. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=notochord
6. ^ Chambers 20th Century Dictionary
   https://www.gutenberg.org/files/37683/37683-h/37683-h.htm#:~:text=notochord