The Collaborative International Dictionary of English v.0.48:

Beer \Beer\, n. [OE. beor, ber, AS. be['o]r; akin to Fries.
   biar, Icel. bj?rr, OHG. bior, D. & G. bier, and possibly E.
   brew. [root]93, See Brew.]
   1. A fermented liquor made from any malted grain, but
      commonly from barley malt, with hops or some other
      substance to impart a bitter flavor.
      [1913 Webster]

   Note: Beer has different names, as small beer, ale,
         porter, brown stout, lager beer, according to its
         strength, or other qualities. See Ale.
         [1913 Webster]

   2. A fermented extract of the roots and other parts of
      various plants, as spruce, ginger, sassafras, etc.
      [1913 Webster]

   Small beer, weak beer; (fig.) insignificant matters. "To
      suckle fools, and chronicle small beer." --Shak.
      [1913 Webster]

WordNet (r) 3.0 (2006):

beer
    n 1: a general name for alcoholic beverages made by fermenting a
         cereal (or mixture of cereals) flavored with hops

Easton's 1897 Bible Dictionary:

Beer
   well. (1.) A place where a well was dug by the direction of
   Moses, at the forty-fourth station of the Hebrews in their
   wanderings (Num. 21:16-18) in the wilderness of Moab. (See WELL.)

     (2.) A town in the tribe of Judah to which Jotham fled for
   fear of Abimelech (Judg. 9:21). Some have identified this place
   with Beeroth.


Hitchcock's Bible Names Dictionary (late 1800's):

Beer, a well