dorsum

dorsum [dawr-suh m] Word Origin noun, plural dor·sa [dawr-suh] /ˈdɔr sə/. Anatomy, Zoology.

1. the back, as of the body.
2. the back or outer surface of an organ, part, etc.

Origin of dorsum Borrowed into English from Latin around 1775–85 British Dictionary definitions for dorsa dorsum noun plural -sa (-sə) anatomy

1. a technical name for the back 1
2. any analogous surfacethe dorsum of the hand

Word Origin for dorsum C18: from Latin, literally: back dorsa in Medicine dorsum [dôr′səm] n. pl. dor•sa (-sə)

1. The back.
2. The upper, outer surface of an organ, appendage, or part.