For volume shippers looking for the most economical ground delivery, Parcel Select is the best option available. As of January 27, 2013, Parcel Select was split into Parcel Select, for online purchasing, and Standard Post for purchasing at the Post Office.
Dorsalgia (medical condition): Pain felt in the back that usually originates from the muscles,...more Â». See also: Chronic Back pain: Â»Introduction: Chronic Back pain. Â»Symptoms of Chronic Back pain. Â»Causes of Chronic Back pain. Â»Treatments for Chronic Back pain. Dorsalgia: Back pain.
Dorsal fin. Dorsal fin of a shark. A dorsal fin is a fin located on the backs of various unrelated marine and freshwater vertebrates, including most fish, cetaceans (whales, dolphins, and porpoises), and the (extinct) ichthyosaurs. Depending on the species, an animal may have one or two of them.