adv. & predic.adj. Naut. in or intothelowerpart of a ship. Etymology: A(2) + LOW(1) ALP n. 1 a a highmountain. b (the Alps) the high range of mountains in Switzerland and adjoining countries. 2 (in Switzerland) pasture-land on a mountainside. Etymology: orig. pl., f. F f. L Alpes f. Gk Alpeis