schankbier,
From The Oxford Companion to Beer
a now antiquated German federal beer tax category that was abolished effective January 1, 1993. Literally, the term meant “tap beer” and referred to a brew with an original gravity—measured in degrees Plato—of 7°P to 8°P.
See also original gravity and plato gravity scale. For an explanation of the old and the new German beer tax law, see vollbier.
This definition is from The Oxford Companion to Beer, edited by Garrett Oliver. © Oxford University Press 2012.