Definition

The amount of space in a container that is not filled with liquid, often due to leakage or evaporation.

Example

After the shipment, the ullage in the tank was measured to ensure it was within acceptable limits.

Conversation

Hey, have you ever heard of the term ullage?

Yeah, it refers to the space in a container that isn’t filled, right?

Exactly! It’s interesting how much ullage can affect storage for liquids.

Definitely! Too much ullage can lead to spoilage or waste.

Synonyms & Antonyms

Root Explanation

Ullage comes from the Old French word 'ouillage', which means the act of filling a cask or barrel, derived from 'ouiller' (to fill). The term specifically refers to the amount of liquid that is lost or not filled in a container, particularly in the context of wine or spirits.

Memory Tip

Think of the Old French word 'ouiller' meaning to fill, and remember that ullage refers to the space that is not filled in a container.

Visually Confused Words