vacuum bottle
- noun
- /ˈvæk.juːm ˈbɑː.təl/
:
termo
- After filling my vacuum bottle with soup, I sealed it tightly to keep it warm until lunch.
Examples
-
Maybe a polished vacuum bottle will rival it with the bottom closed.
Blog text (18) -
To keep my coffee hot during the hike, I filled my vacuum bottle before we left.
-
A vacuum bottle is perfect for transporting cold drinks on a hot day.
Synonyms
3
1.9
A container that keeps drinks hot or cold for a long time
1
2.5
A bottle that keeps drinks hot or cold for a long time
A container that keeps drinks hot or cold for a long time
A container that keeps drinks hot or cold for a long time
How Insulating
∞
1.0
Surface Forms
Morphology
The meaning is directly derivable from combining 'vacuum' (an empty space lacking air) with 'bottle' (a container for liquids): a bottle that uses a vacuum between walls to reduce heat transfer. This is a literal noun–noun compound following common compounding patterns (and similar constructions exist cross-linguistically), so a B1 learner who knows both constituents should understand its function.
Etymology
The noun vacuum bottle is a bottle with two walls and a space with no air between them called a vacuum. That empty space stops heat moving, so the bottle can 'keep liquids hot or cold' for a long time.