n. Grain in which, by partial germination, arrested at the proper stage by heat, the starch is converted into saccharine matter (grape-sugar), the unfermented solution of the latter being the sweetwort of the brewer.n. Liquor produced from malt, as ale, porter, or beer.Pertaining to, containing, or made with malt.To convert (grain) into malt.To become malt; be converted into malt.To drink malt liquor.An obsolete preterit of melt.