Dorsum (plural Dorsa) is a Latin word. In science, it may refer to:
Anatomy Dorsum (anatomy), the upper side of an animal, or the back in erect organisms Dorsum humanum, the human back Dorsum of foot, the top of the foot Dorsum of hand (also called the opisthenar), the back of the hand The back of the tongue, which is used for articulating dorsal consonants
Other uses Dorsum (moth), genus of moths of the family Erebidae Dorsum (astrogeology), wrinkle ridges found on planets or moons Theta Capricorni, a star on the back of Capricornus