ULLAGE definition: the amount by which the contents fall short of filling a container, as a cask or bottle. See examples of ullage used in a sentence.

The word ullage comes from the Latin word oculus, used by the Romans to refer to a barrel cork hole. This word was, in turn, taken in medieval French as oeil, from which a verb ouiller was created, …

Ullage is the volume which is left empty in a tank so that there is space for the liquid in the tank to expand. The air space between the oil surface and the top of the tank is known as ullage. Keeping …

Mar 17, 2026 · Ullage is the empty space above a liquid inside a container. Whether it’s a wine bottle, a rocket fuel tank, or an oil tanker, that gap between the liquid surface and the top of the vessel is the …

Generally the greater the amount of ullage, the more potential that the wine has been exposed to harmful levels of oxidation.

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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.

ullage, n. meanings, etymology, pronunciation and more in the Oxford English Dictionary

The meaning of ULLAGE is the amount that a container (such as a tank or cask) lacks of being full.

Ullage definition: The amount of liquid within a container that is lost, as by leakage, during shipment or storage.