D defs.my
Entry 1 sense Webster, 1913

kvass

· IPA /kvɑːs/
01 n. A thin, sour beer, made by pouring warm water on rye or barley meal and letting it ferment, -- much used by the Russians.
  1. 1.
    A thin, sour beer, made by pouring warm water on rye or barley meal and letting it ferment, -- much used by the Russians.