dor·sal /ˈdɔrsəl/ 形容詞
1. Anat. 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.
2. Bot. (a) Pertaining to the surface naturally inferior, as of a leaf. (b) Pertaining to the surface naturally superior, as of a creeping hepatic moss.
Dorsal vessel Zool., a central pulsating blood vessel along the back of insects, acting as a heart.
Dor·sal, n. Fine Arts A hanging, usually of rich stuff, at the back of a throne, or of an altar, or in any similar position.
adj 1: belonging to or on or near the back or upper surface of an
animal or organ or part; "the dorsal fin is the
vertical fin on the back of a fish and certain marine
mammals" [ant: ventral]
2: facing away from the axis of an organ or organism; "the
abaxial surface of a leaf is the underside or side facing
away from the stem" [syn: abaxial] [ant: adaxial]