a vacuum bottle or similar container lined with an insulating material, such as polystyrene, to keep liquids hot or cold.
- Also called thermos bottle.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use thermos in a sentence
We accompany the meal with a thermos of hot chocolate or tea.
This may sound silly, but you’ll thank us when you realize your new microwavable thermos doesn’t fit.The best microwaves: This way for buttery popcorn and tempting leftovers | PopSci Commerce Team | January 22, 2021 | Popular-Science
Strain and refrigerate whatever you’re not putting into your thermos.4 Hot Cocktail Recipes to Save Your Winter Social Life | AC Shilton | December 17, 2020 | Outside Online
If you have ten minutes to spare, fill your thermos with hot water and allow that inner wall to warm up.Want to Get Outside All Winter? Bring Your Thermos. | AC Shilton | November 29, 2020 | Outside Online
If you prefer drinking out of a mug instead of a tumbler or thermos, but hate how quickly your tea gets cold, the Ember Smart Mug 2 is a dream come true.Gear to make every day feel like National Coffee Day | PopSci Commerce Team | September 29, 2020 | Popular-Science
Even the humble espresso machine got bad press, despite being the size of a thermos cup and brought as a joke.
Back at the cabin we sit together on a log near the porch and drink bourbon and ice water out of the thermos cap.Pete Dexter’s Indelible Portrait of Author Norman Maclean | Pete Dexter | March 23, 2014 | THE DAILY BEAST
She once hit him over the head with a thermos in the back of a car because he was acting up so badly on a road trip.Meghan McCain on Her Grandmother Roberta McCain’s 100th Birthday | Meghan McCain | February 7, 2012 | THE DAILY BEAST
She does not drink water, only red wine from Domaine Tempier, Champagne, and a thermos of tisane before bed.
Just before he reached the car one of the thermos bottles started to slide down under his elbow.Cabin Fever | B. M. Bower
Foster reached forward and took a thermos bottle, his partner seized another.Cabin Fever | B. M. Bower
We had found that a glass of very hot water relieved it, and we kept always a thermos bottle or two filled and ready.Mark Twain, A Biography, 1835-1910, Complete | Albert Bigelow Paine
He pulled a thermos of coffee from under the desk and turned back to the confusion of red-coded memoranda on his desk.Victory | Lester del Rey
Big Jim spread a white napkin over his knee and poured a cup of steaming soup from the thermos bottle.Still Jim | Honor Willsie Morrow
British Dictionary definitions for Thermos
trademark a type of stoppered vacuum flask used to preserve the temperature of its contents: See also Dewar flask
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