Dorsal /(?)/

Dor·sal

Dorsal

a.
  1. Pertaining to, or situated near, the back, or dorsum, of an animal or of one of its parts; notal; tergal; neural; as, the dorsal fin of a fish; the dorsal artery of the tongue; -- opposed to ventral. (Anat.)
  2. Pertaining to the surface naturally inferior, as of a leaf. (Bot.)

Phrases & Compounds
Dorsal vessel
a central pulsating blood vessel along the back of insects, acting as a heart.

Dorsal

n.
  1. A hanging, usually of rich stuff, at the back of a throne, or of an altar, or in any similar position. (Fine Arts)