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1. The amount of liquid within a container that is lost, as by leakage, during shipment or storage.
2. The amount by which a container, such as a bottle, cask, or tank, falls short of being full.
[Middle English ulage, from Old French ouillage, from ouiller, to fill up a cask, from ouil, eye, bunghole, from Latin oculus, eye; see okw- in Indo-European roots.]
1. (Commerce) the volume by which a liquid container falls short of being full
a. the quantity of liquid lost from a container due to leakage or evaporation
b. (in customs terminology) the amount of liquid remaining in a container after such loss
3. (Commerce) to create ullage in
4. (Commerce) to determine the amount of ullage in
5. (Commerce) to fill up ullage in
[C15: from Old French ouillage filling of a cask, from ouiller to fill a cask, from ouil eye, from Latin oculus eye]
the amount by which the contents fall short of filling a container, as a cask or bottle.
[1400–50; late Middle English < Anglo-French ulliage; Old French ouillage,(h)eullage wine needed to fill a cask]
Past participle: ullaged