(1) 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"
(2) The posterior part of a human (or animal) body from the neck to the end of the spine
"His back was nicely tanned"
- With respect to, or concerning the side in which the backbone is located, or the analogous side of an invertebrate.
- Having only one sharp side.
- An anatomical term referring to the top surface of either foot and/or hand.