• (n.) Same as dorsal, n. • (n.) The back of a book. • (n.) The Baltic or variable cod (Gadus callarias), by some believed to be the young of the common codfish. Found on http://thinkexist.com/dictionary/meaning/dorse/
Dorse noun [ Confer Latin dorsum the back. See Dorsel , Dosel .] 1. Same as dorsal , noun [ Obsolete] 2. The back of a book. [ Obsolete] « Books, all richly bound, with gilt dorses .» Wood. Found on http://www.encyclo.co.uk/webster/D/111