Definition of "dorse"

dorse¹

/dɔː(ɹ)s/

noun
plural dorses
1. The Baltic cod or variable cod (Gadus morhua callarias).

dorse²

/dɔː(ɹ)s/

noun
plural dorses
1. (obsolete) The back of a book.
  Quotations
  books, all richly bound, with gilt dorses
  1691, Anthony Wood, Athenæ Oxonienses
2. (obsolete) A dossal.