Breadcrumb Home > Thesaurus > D Synonyms of dewar Find synonyms for: Noun 1. Dewar flask, Dewar, vacuum flask, vacuum bottle usage: vacuum flask that holds liquid air or helium for scientific experiments 2. Dewar, Sir James Dewar usage: Scottish chemist and physicist noted for his work in cryogenics and his invention of the Dewar flask (1842-1923) WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of dewar (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: turgid Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language