Rachis meaning

rākĭs
The main shaft of a bird's feather, especially the part to which the barbs are attached.
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The spinal column.
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(bot.) The principal axis of an inflorescence or of a compound leaf.
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(zool.) The shaft of a feather, esp. that part bearing the barbs.
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The main shaft of a bird's feather, especially the part to which the barbs are attached.
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The spinal column.
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A main axis or shaft, such as the main stem of an inflorescence, the stalk of a pinnately compound leaf, the shaft of a feather, or the spinal column.
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(botany) The main shaft of either a compound leaf, head of grain, or fern frond.
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(zoology, anatomy) The spine or the vertebrae of the spine.
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(ornithology) The central shaft of a feather.
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Origin of rachis

  • New Latin from Greek rhakhis spine, ridge

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

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

    From Wiktionary