ullage

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English[edit]

Etymology[edit]

From Middle English ulage, from Anglo-Norman ullage, from *ullier (to fill a partially empty cask), from Old French oel (bunghole", literally, "eye), from Latin oculus (eye).

Noun[edit]

ullage (countable and uncountable, plural ullages)

  1. In a wine bottle, the empty space between the cork and the top of the wine.
  2. In a cask or barrel, the empty space, occupied by air, that is created by not completely filling the cask or barrel
  3. The topping-up of such a barrel with fresh wine
  4. In an industrial setting, the empty space in a tank, such as for fuel