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rachis
 
Noun rachis has 2 senses
  1. rachis - axis of a compound leaf or compound inflorescence
    --1 is a kind of     axis
  2. spinal column, vertebral column, spine, backbone, back, rachis - the series of vertebrae forming the axis of the skeleton and protecting the spinal cord; "the fall broke his back"
    --2 is a kind of skeletal structure
    --2 is a part of axial skeleton
    --2 has parts:
     spinal canal, vertebral canal, canalis vertebralis; coccyx, tail bone; vertebra; intervertebral disc, intervertebral disk
     --2 has particulars: notochord; chine
rachel louise carson rachel samuel rachelle rachet rachet up racheting up rachida rachio rachis rachischisis rachitanga rachitic rachitis rachmaninoff rachmaninov rachycentridae rachycentron

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