Source : Webster's Revised Unabridged Dictionary (1913)

Lager \La"ger\ (l[aum]"g[~e]r), n.
   Lager beer.

Source : WordNet®

lager
     n 1: a camp defended by a circular formation of wagons [syn: {laager}]
     2: a general term for beer made with bottom fermenting yeast
        (usually by decoction mashing); originally it was brewed
        in March or April and matured until September [syn: {lager
        beer}]