noun, plural spinae
[spahy-nee] /ˈspaɪ ni/ (Show IPA). Anatomy, Zoology.
a spine or spinelike projection.

spina spi·na (spī’nə)
n. pl. spi·nae (-nē)
A spine-shaped or sharp thornlike anatomical process.


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  • Spinal-accessory-nerve

    noun 1. accessory nerve.

  • Spinal anaesthesia

    noun 1. (surgery) anaesthesia of the lower half of the body produced by injecting an anaesthetic beneath the arachnoid membrane surrounding the spinal cord See also epidural (sense 2) 2. (pathol) loss of sensation in some part of the body as the result of injury of the spinal cord

  • Spinal analgesia

    spinal analgesia n. The deactivation of sensory nerves by injecting a local anesthetic into the subarachnoid space of the spine.

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