Dewar flask
Definition
- Noun:
- A specialized vacuum flask designed to hold and maintain the extremely low temperatures of liquid air or liquid helium, primarily for scientific and laboratory use. It consists of two flasks, one inside the other, separated by a vacuum to minimize heat transfer.
Usage Examples
- Noun:
- The researcher carefully poured the liquid nitrogen into the dewar flask.
- For the superconductivity experiment, they stored the helium in a large dewar flask.
Advanced Usage
- "Dewar": Often used as a shortened, informal term for a dewar flask.
- Please bring the dewar from the cryogenics lab.
Variants and Related Words
- Dewar (n): A common short form for "dewar flask."
- Cryogenic storage dewar (n): A specific type of dewar flask used for long-term storage of biological samples or materials at very low temperatures.
- Vacuum flask (n): The general category of insulated containers to which the dewar flask belongs.
Synonyms
- Vacuum flask: A general term for any double-walled flask with a vacuum between the walls.
- Cryogenic container: A container specifically designed for storing materials at cryogenic temperatures.
Related Phrases
- Dewar vessel: An alternative name for a dewar flask, emphasizing its container function.
Noun
-
vacuum flask that holds liquid air or helium for scientific experiments
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