(1):
(n.) Barley or other grain, steeped in water and dried in a kiln, thus forcing germination until the saccharine principle has been evolved. It is used in brewing and in the distillation of whisky.
(2):
(v. t.) To make into malt; as, to malt barley.
(3):
(a.) Relating to, containing, or made with, malt.
(4):
(v. i.) To become malt; also, to make grain into malt.