Synonyms

vacuum flask

British

noun

Also called: Thermos. Dewar flask. an insulating flask that has double walls, usually of silvered glass, with an evacuated space between them. It is used for maintaining substances at high or low temperatures

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Since developing the all-steel vacuum flask in 1913, the Stanley company has cultivated a particularly rugged, if not decidedly masculine, image.

From Salon

We also had 500 plastic bags, a vacuum flask of dry ice, and 350 cryogenic vials, each the size and shape of a pencil stub.

From The Guardian

He was pumping the air from the vacuum flask, and took no notice; it was as if he’d already forgotten her.

From Literature

The drink is hugely popular and it’s common to see people walking with gourd in hand and a vacuum flask of hot water tucked under their arm.

From Washington Times

A small office, the floor cluttered with knee-high vacuum flasks.

From The Guardian

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023