ther·​mos ˈthər-məs How to pronounce thermos (audio)
: a container (such as a bottle or jar) with a vacuum between an inner and outer wall used to keep material and especially liquids either hot or cold for considerable periods

Examples of thermos in a Sentence

Recent Examples on the Web Loading your audio article Cops are hunting the creep who hurled a racist insult at an Asian man before bashing him in the head with a thermos in Manhattan, cops and police sources said. Emma Seiwell, New York Daily News, 29 June 2024 Background For the last few years, Stanley, the 100-plus-year-old company behind those green thermoses from camping trips of yore, has been invading the consumer consciousness. Scott Hocker, theweek, 8 Feb. 2024 Sitting shoulder to shoulder, muttering curses in Farsi and Pashto, our engineers had each drunk six cups of tea in less than ten minutes, hoarding an entire thermos for themselves. Jamil Jan Kochai, The New Yorker, 19 Feb. 2024 But for a child, a thermos of hot chocolate was always an exciting companion. Linda Solomon, Detroit Free Press, 20 Jan. 2024 See all Example Sentences for thermos 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'thermos.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


from Thermos, a trademark

First Known Use

1907, in the meaning defined above

Time Traveler
The first known use of thermos was in 1907

Dictionary Entries Near thermos

Cite this Entry

“Thermos.” Dictionary, Merriam-Webster, Accessed 23 Jul. 2024.

Kids Definition


ther·​mos ˈthər-məs How to pronounce thermos (audio)
: a container (as a bottle) with a vacuum between an inner and an outer wall used to keep material (as liquids) hot or cold

More from Merriam-Webster on thermos

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