rachis vs spine

spine vs rachis

rachis and spine both are nouns.

Word	Noun	Adjective	Verb	Adverb
rachis	Yes	No	No	No
spine	Yes	No	No	No

As nouns, rachis and spine are synonyms defined as:

rachis and spine: the series of vertebrae forming the axis of the skeleton and protecting the spinal cord

Other synonyms of rachis include back, backbone, spinal column, vertebral column.

rachis (noun)	spine (noun)
the series of vertebrae forming the axis of the skeleton and protecting the spinal cord	a sharp rigid animal process or appendage; as a porcupine quill or a ridge on a bone or a ray of a fish fin
axis of a compound leaf or compound inflorescence	the part of a book's cover that encloses the inner side of the book's pages and that faces outward when the book is shelved
	the series of vertebrae forming the axis of the skeleton and protecting the spinal cord
	a small sharp-pointed tip resembling a spike on a stem or leaf
	any sharply pointed projection

Difference between rachis and spine

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