Dewar flask

/ ˈdjuːə /

noun

1. a type of vacuum flask, esp one used in scientific experiments to keep liquid air, helium, etc; Thermos

Word History and Origins

Origin of Dewar flask¹

C20: named after Sir James Dewar

Example Sentences

Dewar Flask, a flask devised by Dewar for the examination of liquefied gases.

From Project Gutenberg