adjective
(anatomy, zootomy) With respect to, or concerning the side in which the backbone is located, or the analogous side of an invertebrate.
(of a knife) Having only one sharp side.
(botany) Relating to the surface naturally inferior, as of a leaf.
(botany) Relating to the surface naturally superior, as of a creeping hepatic moss.
noun
(art) A hanging, usually of rich stuff, at the back of a throne, altar, etc.
(zootomy, in snakes) Any of the longitudinal series of plates that encircle the body, excluding the ventral scales.
(linguistics) A sound produced using the dorsum of the tongue.