The amount of liquid within a container that is lost, as by leakage, during shipment or storage.
The amount by which a container, such as a bottle, cask, or tank, falls short of being full.
The amount by which a container, esp. of liquid, falls short of being full.
In a wine bottle, the empty space between the cork and the top of the wine.
In a cask or barrel, the empty space, occupied by air, that is created by not completely filling the cask or barrel.
The topping-up of such a barrel with fresh wine.
In an industrial setting, the empty space in a tank, such as for fuel.
Origin of ullage
- Middle English ulage from Old French ouillage from ouiller to fill up a cask from ouil eye, bunghole from Latin oculus eye okw- in Indo-European roots
From American Heritage Dictionary of the English Language, 5th Edition