vanilla

vanilla adj.  [from the default flavor of ice cream in the
   U.S.]  Ordinary {flavor}, standard.  When used of food, very
   often does not mean that the food is flavored with vanilla extract!
   For example, `vanilla wonton soup' means ordinary wonton soup, as
   opposed to hot-and-sour wonton soup.  Applied to hardware and
   software, as in "Vanilla Version 7 UNIX can't run on a vanilla
   11/34."  Also used to orthogonalize chip nomenclature; for
   instance, a 74V00 means what TI calls a 7400, as distinct from a
   74LS00, etc.  This word differs from {canonical} in that the
   latter means `default', whereas vanilla simply means
   `ordinary'.  For example, when hackers go on a {great-wall},
   hot-and-sour soup is the {canonical} soup to get (because that
   is what most of them usually order) even though it isn't the
   vanilla (wonton) soup.