Rachis Definition

rākĭs
rachides, rachises
noun
rachises
The main stem of an elongated inflorescence, as in a grass.
American Heritage Medicine
The principal axis of an inflorescence or of a compound leaf.
Webster's New World
Webster's New World
The shaft of a feather, esp. that part bearing the barbs.
Webster's New World

(zoology, anatomy) The spine or the vertebrae of the spine.

Wiktionary

Other Word Forms of Rachis

Noun

Singular:
rachis
Plural:
rachides, rachises

Origin of Rachis

  • From New Latin, from Ancient Greek ῥάχις (rhakhis, “spine, ridge").

    From Wiktionary

  • New Latin from Greek rhakhis spine, ridge

    From American Heritage Dictionary of the English Language, 5th Edition

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