Source : Webster's Revised Unabridged Dictionary (1913)

Malt \Malt\, v. t. [imp. & p. p. {Malted}: p. pr. & vb. n.
   {Malting}.]
   To make into malt; as, to malt barley.

Malt \Malt\, v. i.
   To become malt; also, to make grain into malt. --Mortimer.

Malt \Malt\, n. [AS. mealt; akin to D. mout, G. malz, Icel.,
   Sw., & Dan. malt, and E. melt. [root]108. See {Melt}.]
   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.

Malt \Malt\, a.
   Relating to, containing, or made with, malt.

   {Malt liquor}, an alcoholic liquor, as beer, ale, porter,
      etc., prepared by fermenting an infusion of malt.

   {Malt dust}, fine particles of malt, or of the grain used in
      making malt; -- used as a fertilizer. `` Malt dust
      consists chiefly of the infant radicle separated from the
      grain.'' --Sir H. Davy.

   {Malt floor}, a floor for drying malt.

   {Malt house}, or {Malthouse}, a house in which malt is made.
      

   {Malt kiln}, a heated chamber for drying malt.

Source : WordNet®

malt
     v 1: treat with malt or malt extract; "malt beer"
     2: turn into malt, become malt
     3: convert grain into malt
     4: convert into malt

malt
     n 1: a milkshake made with malt powder [syn: {malted}, {malted
          milk}]
     2: a lager of high alcohol content; by law it is considered too
        alcoholic to be sold as lager or beer [syn: {malt liquor}]
     3: a cereal grain that is kiln-dried after having been
        germinated by soaking in water; used especially in brewing
        and distilling