dorse /dɔː(ɹ)s/noun 3forms 1phrases 1 noun3 •The Baltic cod or variable cod (Gadus morhua callarias). •(no longer used) The back of a book.books, all richly bound, with gilt dorses — 1691 •(no longer used) A dossal. formsdorses Phrases with dorse send to dorseTo throw (a person) onto their back; to knock out.