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Noun: dorsum (dorsa)  dor-sum
  1. The posterior part of a human (or animal) body from the neck to the end of the spine
    "his dorsum was nicely tanned";
    - back
  2. The back of the body of a vertebrate or any analogous surface (as the upper or outer surface of an organ or appendage or part)
    "the dorsum of the foot"

Derived forms: dorsa

Type of: body part

Part of: body, torso, trunk

Encyclopedia: Dorsum