spine

1. is a type of: skeletal structure - any structure created by the skeleton of an organism
   subtypes:

   • notochord - a flexible rodlike structure that forms the supporting axis of the body in the lowest chordates and lowest vertebrates and in embryos of higher vertebrates
   • chine - backbone of an animal
   has:

   • canalis vertebralis, spinal canal, vertebral canal - the canal in successive vertebrae through which the spinal cord passes
   • coccyx, tail bone - the end of the vertebral column in humans and tailless apes
   • vertebra - one of the bony segments of the spinal column
   • intervertebral disc, intervertebral disk - a fibrocartilaginous disc serving as a cushion between all of the vertebrae of the spinal column (except between the first two)
   is a part of: axial skeleton - the part of the skeleton that includes the skull and spinal column and sternum and ribs
   same as: back, backbone, rachis, spinal column, vertebral column
2. is a type of: projection - any solid convex shape that juts out from something
   same as: acantha, spur
3. is a type of: aculeus - a stiff sharp-pointed plant process
   subtypes: glochid, glochidium - a barbed spine or bristle (often tufted on cacti)
   same as: pricker, prickle, spikelet, sticker, thorn
4. is a type of: part, portion - something less than the whole of a human artifact
   is a part of: book, volume - physical objects consisting of a number of pages bound together
   same as: backbone
5. is a type of: appendage, outgrowth, process - a natural prolongation or projection from a part of an organism either animal or plant
   subtypes:

   • ray - any of the stiff bony spines in the fin of a fish
   • quill - a stiff hollow protective spine on a porcupine or hedgehog

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• Rhyme: Dillfrog, RhymeZone
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