RACHIS • DICCIONARIO INGLES.COM • Definition of Rachis

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Rachis

noun

(pl. E. rachises, L. rachides) (Written also rhachis)

Axis of a compound leaf or compound inflorescence.

The series of vertebrae forming the axis of the skeleton and protecting the spinal cord. Synonyms: back, backbone, spinal column, spine, vertebral column.

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Etymology of 'Rachis'

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"Rachis" Quotes from Famous Books

... so much in structure from phanerogamic plants, it may be worth while here to show that twining ferns do not differ in their habits from other twining plants. In Lygodium articulatum the two internodes of the stem (properly the rachis) which are first formed above the root-stock do not move; the third from the ground revolves, but at first very slowly. This species is a slow revolver: but L. scandens made five revolutions, each at the average rate of 5 hrs. 45 m.; and ...

— The Movements and Habits of Climbing Plants • Charles Darwin

Words linked to "Rachis" : vertebra, axial skeleton, canalis vertebralis, spinal canal, vertebral canal, skeletal structure, coccyx, intervertebral disk, axis, intervertebral disc, notochord, chine, tail bone